The next full moon will be Wednesday morning, Feb. 12, 2025, appearing opposite the Sun (in Earth longitude) at 8:53 a.m. EST. The Moon will appear full for about three days around this time, from Monday night into early Thursday evening. The bright star Regulus will appear near the full moon.

The Maine Farmers’ Almanac began publishing Native American names for full moons in the 1930s, and these names are now widely known and used. According to this almanac, as the full moon in February, the tribes of the northeastern U.S. called this the Snow Moon or the Storm Moon because of the heavy snows in this season. Bad weather and heavy snowstorms made hunting difficult, so this Moon was also called the Hunger Moon. NOAA monthly averages for the Washington, D.C. area airports from 1991 to 2020 show January and February nearly tied as the snowiest months of the year (with February one tenth of an inch ahead).

Here are the other celestial events between now and the full moon after next with times and angles based on the location of NASA Headquarters in Washington:

As winter continues in the Northern Hemisphere, the daily periods of sunlight continue to lengthen. Wednesday, Feb. 12 (the day of the full moon), morning twilight will begin at 6:04 a.m. EST, sunrise will be at 7:03 a.m., solar noon will be at 12:23 p.m. when the Sun will reach its maximum altitude of 37.7 degrees, sunset will be at 5:43 p.m., and evening twilight will end at 6:41 p.m.

Daylight Saving Time starts on the second Sunday in March for much of the United States. The day before, Saturday, March 8, morning twilight will begin at 5:32 a.m., sunrise will be at 6:30 a.m., solar noon will be at 12:19 p.m. when the Sun will reach its maximum altitude of 46.5 degrees, sunset will be at 6:08 p.m., and evening twilight will end at 7:06 p.m. Early on Sunday morning, March 9, the clock will “spring forward” from 1:59:59 a.m. EST to 3:00:00 a.m. EDT. Sunday, March 9, morning twilight will begin at 6:30 a.m., sunrise will be at 7:28 a.m., solar noon will be at 1:19 p.m. when the Sun will reach its maximum altitude of 46.9 degrees, sunset will be at 7:09 p.m., and evening twilight will end at 8:07 p.m. By Friday, March 14 (the day of the full moon after next), morning twilight will begin at 6:23 a.m., sunrise will be at 7:20 a.m., solar noon will be at 1:17 p.m. when the Sun will reach its maximum altitude of 48.9 degrees, sunset will be at 7:14 p.m., and evening twilight will end at 8:12 p.m.

This should still be a good time for planet watching, especially with a backyard telescope. On the evening of the March 14, the full moon, Venus, Jupiter, Mars, Saturn, and Uranus will all be in the evening sky. The brightest of the planets, Venus, will be 28 degrees above the west-southwestern horizon, appearing as a 29% illuminated crescent through a telescope. Second in brightness will be Jupiter at 71 degrees above the south-southeastern horizon. With a telescope you should be able to see Jupiter’s four bright moons, Ganymede, Callisto, Europa, and Io, noticeably shifting positions in the course of an evening. Jupiter was at its closest and brightest in early December. Third in brightness will be Mars at 48 degrees above the eastern horizon. Mars was at its closest and brightest for the year just a month ago. Fourth in brightness (and appearing below Venus) will be Saturn at 11 degrees above the west-southwestern horizon. With a telescope you may be able to see Saturn’s rings and its bright moon Titan. The rings will appear very thin and will be edge-on to Earth in March 2025. Saturn was at its closest and brightest in early September. The planet Uranus will be too dim to see without a telescope when the Moon is in the sky, but later in the lunar cycle, if you are in a very dark area with clear skies and no interference from moonlight, it will still be brighter than the faintest visible stars. Uranus was at its closest and brightest in mid-November.

During this lunar cycle, these planets, along with the background of stars, will rotate westward by about a degree each night around the pole star Polaris. Venus, named after the Roman goddess of love, will reach its brightest around Feb. 14, making this a special Valentine’s Day. After about Feb. 17, the planet Mercury, shining brighter than Mars, will begin emerging from the glow of dusk about 30 minutes after sunset. Feb. 24 will be the first evening Mercury will be above the western horizon as twilight ends, while Feb. 25 will be the last evening Saturn will be above the western horizon as twilight ends, making these the only two evenings that all of the visible planets will be in the sky after twilight ends. For a few more evenings after this, Saturn should still be visible in the glow of dusk during twilight. Around March 8 or 9, Mercury will have dimmed to the same brightness as Mars, making Mars the third brightest visible planet again. By the evening of March 13 (the evening of the night of the full moon after next), as twilight ends, Venus and Mercury will appear low on the western horizon, making them difficult targets for a backyard telescope, while Jupiter and Mars (and Uranus) will appear high overhead and much easier to view.

Comets and Meteor Showers

No meteor shower peaks are predicted during this lunar cycle. No comets are expected to be visible without a telescope for Northern Hemisphere viewers. Southern Hemisphere viewers may still be able to use a telescope to see comet C/2024 G3 (ATLAS), although it is fading as it moves away from Earth and the Sun, and some recent reports suggest that it might be breaking apart and disappearing from view.

Evening Sky Highlights

On the evening of Wednesday, Feb. 12 (the evening of the full moon), as twilight ends at 6:41 p.m. EST, the rising Moon will be 7 degrees above the east-northeastern horizon with the bright star Regulus 2 degrees to the right. The brightest planet in the sky will be Venus at 28 degrees above the west-southwestern horizon, appearing as a crescent through a telescope. Next in brightness will be Jupiter at 71 degrees above the south-southeastern horizon. Third in brightness will be Mars at 48 degrees above the eastern horizon. The fourth brightest planet will be Saturn at 11 degrees above the west-southwestern horizon. Uranus, on the edge of what is visible under extremely clear, dark skies, will be 68 degrees above the south-southwestern horizon. The bright star closest to overhead will be Capella at 75 degrees above the northeastern horizon. Capella is the 6th brightest star in our night sky and the brightest star in the constellation Auriga (the charioteer). Although we see Capella as a single star, it is actually four stars (two pairs of stars orbiting each other). Capella is about 43 light years from us.

Also high in the sky will be the constellation Orion, easily identifiable because of the three stars that form Orion’s Belt. This time of year, we see many bright stars in the sky at evening twilight, with bright stars scattered from the south-southeast toward the northwest. We see more stars in this direction because we are looking toward the Local Arm of our home galaxy (also called the Orion Arm, Orion-Cygnus Arm, or Orion Bridge). This arm is about 3,500 light years across and 10,000 light years long. Some of the bright stars from this arm that we see are the three stars of Orion’s Belt, and Rigel (860 light years from Earth), Betelgeuse (548 light years), Polaris (about 400 light years), and Deneb (about 2,600 light years).

Facing toward the south from the Northern Hemisphere, to the upper left of Orion’s Belt is the bright star Betelgeuse (be careful not to say this name three times). About the same distance to the lower right is the bright star Rigel. Orion’s belt appears to point down and to the left about seven belt lengths to the bright star Sirius, the brightest star in the night sky. Below Sirius is the bright star Adhara. To the upper right of Orion’s Belt (at about the same distance from Orion as Sirius) is the bright star Aldebaran. Nearly overhead is the bright star Capella. To the left (east) of Betelgeuse is the bright star Procyon. The two stars above Procyon are Castor and Pollux, the twin stars of the constellation Gemini (Pollux is the brighter of the two). The bright star Regulus appears farther to the left (east) of Pollux near the eastern horizon. For now, Mars is near Castor and Pollux, while Jupiter is near Aldebaran, but these are planets (from the Greek word for wanderers) and continue to shift relative to the background of the stars. Very few places on the East Coast are dark enough to see the Milky Way (our home galaxy), but if you could see it, it would appear to stretch overhead from the southeast to the northwest. Since we are seeing our galaxy from the inside, the combined light from its 100 to 400 billion stars make it appear as a band surrounding Earth.

As this lunar cycle progresses, the planets and the background of stars will rotate westward by about a degree each evening around the pole star Polaris. The brightest of the planets, Venus, will reach its brightest around Valentine’s Day, Feb. 14.  Bright Mercury will begin emerging from the glow of dusk around Feb. 17 and will be above the horizon as twilight ends beginning Feb. 24, initiating a brief period when all the visible planets will be in the evening sky at the same time that will end after Feb. 25, the last evening Saturn will be above the horizon as twilight ends. Feb. 24 and 25 will also be the two evenings when Mercury and Saturn will appear closest together.

The waxing crescent “Wet” or “Cheshire” Moon will appear near Mercury on Feb. 28 and Venus on March 1, appearing like a bowl or a smile above the horizon. The waxing gibbous Moon will appear near Mars and Pollux on March 8. Mercury will reach its highest above the horizon as twilight ends on March 8 but will be fading, appearing fainter than Mars. The nearly full moon will appear near Regulus on March 11. Venus and Mercury will be closest to each other on March 12.

By the evening of Thursday, March 13 (the evening of the night of the full moon after next), as twilight ends at 8:11 p.m. EDT, the rising Moon will be 14 degrees above the eastern horizon. The brightest planet in the sky will be Venus at 4 degrees above the west-southwestern horizon, appearing as a thin, 4% illuminated crescent through a telescope. Next in brightness will be Jupiter at 62 degrees above the west-southwestern horizon. Third in brightness will be Mars at 72 degrees above the southeastern horizon. Mercury, to the left of Venus, will also be 4 degrees above the western horizon. Uranus, on the edge of what is visible under extremely clear, moonless dark skies, will be 45 degrees above the western horizon. The bright star closest to overhead will still be Capella at 75 degrees above the northwestern horizon.

Morning Sky Highlights

On the morning of Wednesday, Feb. 12, 2025 (the morning of the night of the full moon), as twilight begins at 6:04 a.m. EST, the setting full moon will be 13 degrees above the western horizon. No planets will appear in the sky. The bright star appearing closest to overhead will be Arcturus at 65 degrees above the southeastern horizon. Arcturus is the brightest star in the constellation Boötes (the herdsman or plowman) and the 4th brightest star in our night sky. It is 36.7 light years from us. While it has about the same mass as our Sun, it is about 2.6 billion years older and has used up its core hydrogen, becoming a red giant 25 times the size and 170 times the brightness of our Sun. One way to identify Arcturus in the night sky is to start at the Big Dipper, then follow the arc of the dipper’s handle as it “arcs toward Arcturus.”

As this lunar cycle progresses the background of stars will rotate westward by about a degree each morning around the pole star Polaris. The waning Moon will appear near Regulus on Feb. 13, Spica on Feb. 17, and Antares on Feb. 21. The nearly full moon will appear near Regulus on March 12.

By the morning of Friday, March 14 (the morning of the full moon after next), as twilight begins at 6:23 a.m. EDT, the setting full moon will be 12 degrees above the western horizon. No visible planets will appear in the sky. The bright star closest to overhead will be Vega at 68 degrees above the eastern horizon. Vega is the 5th brightest star in our night sky and the brightest star in the constellation Lyra (the lyre). Vega is one of the three bright stars of the “Summer Triangle” (along with Deneb and Altair). It is about 25 light-years from Earth, has twice the mass of our Sun, and shines 40 times brighter than our Sun.

Detailed Daily Guide

Here is a day-by-day listing of celestial events between now and the full moon on March 14, 2025. The times and angles are based on the location of NASA Headquarters in Washington, and some of these details may differ for where you are (I use parentheses to indicate times specific to the D.C. area). If your latitude is significantly different than 39 degrees north (and especially for my Southern Hemisphere readers), I recommend using an astronomy app that is set up for your location or a star-watching guide from a local observatory, news outlet, or astronomy club.

Sunday morning, Feb. 9 Mars will appear to the upper left of the waxing gibbous Moon. In the early morning at about 2 a.m. EST, Mars will be 8 degrees from the Moon. By the time the Moon sets on the northwestern horizon at 5:58 a.m., Mars will have shifted to 6 degrees from the Moon. For parts of Asia and Northern Europe the Moon will pass in front of Mars. Also, Sunday morning, the planet Mercury will be passing on the far side of the Sun as seen from Earth, called superior conjunction. Because Mercury orbits inside of the orbit of Earth it will be shifting from the morning sky to the evening sky and will begin emerging from the glow of dusk on the west-southwestern horizon after about Feb. 17 (depending upon viewing conditions).

Sunday evening into Monday morning, Feb. 9 – 10 The waxing gibbous Moon will have shifted to the other side of the Mars (having passed in front of Mars in the afternoon when we could not see them). As evening twilight ends (at 6:38 p.m. EST) the Moon will be between Mars and the bright star Pollux, with Mars 3 degrees to the upper right and Pollux 3 degrees to the lower left. By the time the Moon reaches its highest for the night at 10:27 p.m., Mars will be 4.5 degrees to the right of the Moon and Pollux 2.5 degrees to the upper left of the Moon. Mars will set first on the northwestern horizon Monday morning at 5:44 a.m., just 22 minutes before morning twilight begins at 6:06 a.m.

Wednesday morning, Feb. 12 As mentioned above, the full moon will be Wednesday morning, Feb. 12, at 8:53 a.m. EST. This will be on Thursday morning from Australian Central Time eastward to the international date line in the mid-Pacific. The Moon will appear full for about three days around this time, from Monday night into early Thursday evening.

Wednesday evening into Thursday morning, Feb. 12 to 13 The bright star Regulus will appear near the full moon. As evening twilight ends at 6:41 p.m. EST, Regulus will be less than 2 degrees to the right of the Moon, very near its closest. By the time the Moon reaches its highest for the night at 12:55 a.m., Regulus will be 3 degrees to the right. As morning twilight begins at 6:03 a.m., Regulus will be 5 degrees to the lower right of the Moon.

Friday evening, Feb. 14 Venus, the brightest of the planets, will be near its brightest for the year (based on a geometric estimate called greatest brilliancy). As evening twilight ends at 6:43 p.m. EST, Venus will be 28 degrees above the west-southwestern horizon. Venus will set on the western horizon about 2.5 hours later at 9:09 p.m. Having Venus, named after the Roman goddess of love, shining at its brightest on this evening will make for a special Valentine’s Day!

Sunday night into Monday morning Feb. 16 to 17 Bright star Spica will appear near the waning gibbous Moon. As Spica rises on the east-southeastern horizon at 10:19 p.m. EST, it will be 3.5 degrees to the lower left of the Moon. Throughout the night Spica will appear to rotate clockwise around the Moon. As the Moon reaches its highest at 3:37 a.m., Spica will be 2 degrees to the left of the Moon. By the time morning twilight begins at 5:58 a.m., Spica will be a little more than a degree above the Moon.

Monday evening, Feb. 17 This will be the first evening Mercury will be above the west-southwestern horizon 30 minutes after sunset, a rough approximation of when it might start emerging from the glow of dusk before evening twilight ends. Increasing the likelihood it will be visible, Mercury will be brighter than Mars, but not as bright as Jupiter.

Monday evening, Feb. 17 At 8:06 p.m. EST, the Moon will be at apogee, its farthest from Earth for this orbit.

Midday on Thursday, Feb. 20 The waning Moon will appear half full as it reaches its last quarter at 12:32 p.m. EST.

Friday morning, Feb. 21 The bright star Antares will appear quite near the waning crescent Moon. As the Moon rises on the southeastern horizon at 2:05 a.m. EST, Antares will be one degree to the upper left. Antares will appear to rotate clockwise and shift away from the Moon as morning progresses. By the time morning twilight begins at 5:53 a.m., Antares will be 2 degrees to the upper right of the Moon. From the southern part of South America, the Moon will actually block Antares from view.

Monday, Feb. 24 This will be the first evening Mercury will be above the western horizon as evening twilight ends at 6:54 p.m. EST, setting three minutes later at 6:57 p.m. This will be the first of two evenings when all the visible planets will be in the evening sky at the same time after twilight ends.

This also will be the evening when Mercury and Saturn will appear nearest to each other, 1.6 degrees apart. To see them you will need a very clear view toward the western horizon and will likely have to look before evening twilight ends at 6:54 p.m. EST, as Mercury will set three minutes later at 6:57 p.m., and Saturn two minutes after Mercury at 6:59 p.m.

Tuesday, Feb. 25 This will be the last evening Saturn will be above the western horizon as evening twilight ends at 6:55 p.m. EST, setting one minute later at 6:56 p.m. This will be the last of two evenings when all of the visible planets will be in the evening sky at the same time after twilight ends. Mercury and Saturn will appear almost as close together as the night before, with Mercury setting six minutes after Saturn at 7:02 p.m. Saturn, appearing about as bright as the star Pollux, may still be visible in the glow of dusk before evening twilight ends for a few evenings after this.

Thursday evening, Feb. 27 At 7:45 p.m. EST will be the new Moon, when the Moon passes between Earth and the Sun and will not be visible from Earth.

The day of, or the day after, the new Moon marks the start of the new month for most lunisolar calendars. The second month of the Chinese calendar starts on Friday, Feb. 28. Sundown on Feb. 28 also marks the start of Adar in the Hebrew calendar. In the Islamic calendar the months traditionally start with the first sighting of the waxing crescent Moon. Many Muslim communities now follow the Umm al-Qura Calendar of Saudi Arabia, which uses astronomical calculations to start months in a more predictable way (intended for civil and not religious purposes). This calendar predicts the holy month of Ramadan will start with sunset on Feb. 28, but because of Ramadan’s religious significance, it is one of four months in the Islamic year where the start of the month is updated based upon the actual sighting of the crescent Moon. Ramadan is honored as the month in which the Quran was revealed. Observing this annual month of charitable acts, prayer, and fasting from dawn to sunset is one of the Five Pillars of Islam.

Friday evening, Feb. 28 As evening twilight ends at 6:58 p.m. EST, you may be able to see the thin, waxing crescent Moon barely above the western horizon. The Moon will set two minutes later at 7 p.m. Mercury will be 3.5 degrees above the Moon. For this and the next few evenings the waxing crescent Moon will appear most like an upward-facing bowl or a smile in the evening sky (for the Washington, D.C. area and similar latitudes, at least). This is called a “wet” or a “Cheshire” Moon. The term “wet Moon” appears to originate from Hawaiian mythology. It’s when the Moon appears like a bowl that could fill up with water. The time of year when this occurs as viewed from the latitudes of the Hawaiian Islands roughly corresponds with Kaelo the Water Bearer in Hawaiian astrology. As the year passes into summer, the crescent shape tilts, pouring out the water and causing the summer rains. The term “Cheshire Moon” is a reference to the smile of the Cheshire Cat in Lewis Carroll’s book “Alice’s Adventures in Wonderland.”

Saturday afternoon, March 1 At 4:14 p.m. EST, the Moon will be at perigee, its closest to Earth for this orbit.

Saturday evening, as evening twilight ends at 6:59 p.m. EST, the thin, waxing crescent Moon will be 13 degrees above the western horizon, with Venus 7 degrees to the upper right of the Moon. Mercury will appear about 10 degrees below the Moon. The Moon will set 76 minutes later at 8:15 p.m.

Tuesday, March 4 This is Mardi Gras (Fat Tuesday), which marks the end of the Carnival season that began on January 6. Don’t forget to march forth on March Fourth!

Thursday, March 6 The Moon will appear half-full as it reaches its first quarter at 11:32 a.m. EST.

Saturday morning, March 8 Just after midnight, Mercury will reach its greatest angular separation from the Sun as seen from Earth for this apparition (called greatest elongation).

Saturday evening, will be when Mercury will appear at its highest (6 degrees) above the western horizon as evening twilight ends at 7:06 p.m. EST. Mercury will set 34 minutes later at 7:40 p.m. This will also be the evening Mercury will have dimmed to the brightness as Mars, after which Mars will be the third brightest visible planet again.

Also on Saturday evening into Sunday morning, March 8 to 9, Mars will appear near the waxing gibbous Moon with the bright star Pollux (the brighter of the twin stars in the constellation Gemini) nearby. As evening twilight ends at 7:06 p.m. EST, Mars will be 1.5 degrees to the lower right of the Moon and Pollux will be 6 degrees to the lower left. As the Moon reaches its highest for the night 1.25 hours later at 8:22 p.m., Mars will be 1.5 degrees to the lower right of the Moon and Pollux will be 5.5 degrees to the upper left. By the time Mars sets on the northwestern horizon at 4:53 a.m., it will be 4 degrees to the lower left of the Moon and Pollux will be 3 degrees above the Moon.

Sunday morning, March 9 Daylight Saving Time begins. Don’t forget to reset your clocks (if they don’t automatically set themselves) as we “spring forward” to Daylight Saving Time! For much of the U.S., 2 to 3 a.m. on March 9, 2025, might be a good hour for magical or fictional events (as it doesn’t actually exist).

Tuesday evening into Wednesday morning, March 11 to 12 The bright star Regulus will appear close to the nearly full moon. As evening twilight ends at 8:09 p.m. EDT, Regulus will be 4 degrees to the lower right of the Moon. When the Moon reaches its highest for the night at 11:52 p.m., Regulus will be 3 degrees to the lower right. By the time morning twilight begins at 6:26 a.m., Regulus will be about one degree below the Moon.

Wednesday morning, March 12 Saturn will be passing on the far side of the Sun as seen from Earth, called a conjunction. Because Saturn orbits outside of the orbit of Earth it will be shifting from the evening sky to the morning sky. Saturn will begin emerging from the glow of dawn on the eastern horizon in early April (depending upon viewing conditions).

Wednesday evening, March 12 The planets Venus and Mercury will appear closest to each other low on the western horizon, 5.5 degrees apart. They will be about 5 degrees above the horizon as evening twilight ends at 8:10 p.m. EDT, and Mercury will set first 27 minutes later at 8:37 p.m.

Friday morning, March 14: Full Moon After Next The full moon after next will be at 2:55 a.m. EDT. This will be on Thursday evening from Pacific Daylight Time and Mountain Standard Time westward to the international date line in the mid Pacific. The Moon will appear full for about three days around this time, from Wednesday evening into Saturday morning.

Total Lunar Eclipse As the Moon passes opposite the Sun on March 14, it will move through Earth’s shadow, creating a total eclipse of the Moon. The Moon will begin entering the partial shadow Thursday night at 11:57 p.m., but the gradual dimming of the Moon will not be noticeable until it starts to enter the full shadow Friday morning at 1:09 a.m. The round shadow of Earth will gradually shift across the face of the Moon (from lower left to upper right) until the Moon is fully shaded beginning at 2:26 a.m.

The period of full shadow, or total eclipse, will last about 65 minutes, reaching the greatest eclipse at 2:59 a.m. and ending at 3:31 a.m. Even though it will be in full shadow, the Moon will still be visible. The glow of all of the sunrises and sunsets on Earth will give the Moon a reddish-brown hue, sometimes called a “blood” Moon (although this name is also used for one of the full moons near the start of fall). From 3:31 until 4:48 a.m., the Moon will exit the full shadow of Earth, with the round shadow of Earth again shifting across the face of the Moon (from upper left to lower right). The Moon will leave the last of the partial shadow at 6 a.m. ending this eclipse. 

One of three small lunar rovers — part of a NASA technology demonstration called CADRE (Cooperative Autonomous Distributed Robotic Exploration) — is prepared for shipping in a clean room on Jan. 29, 2025, at NASA’s Jet Propulsion Laboratory in Southern California. The project is designed to show that a group of robots can collaborate to gather data without receiving direct commands from mission controllers on Earth, paving the way for potential future multirobot missions. The autonomous rovers, plus a base station and camera system, will launch to the Moon aboard IM-3, Intuitive Machines’ third lunar delivery, which has a mission window that extends into early 2026, as part of NASA’s CLPS (Commercial Lunar Payload Services) initiative. The CADRE hardware was delivered from NASA JPL to Intuitive Machines on Feb. 9, 2025.

Image credit: NASA/JPL-Caltech

Christine Shupla and Claire Ratcliffe Adams, from the NASA Science Activation program’s NASA@ My Library project, facilitated a professional development Co-Design Space Science, Technology, Engineering, & Mathematics (STEM) Workshop for Tribal libraries on August 29, 2024, hosted at the New Mexico State Library. The workshop was planned with input from Cassandra Osterloh (the New Mexico State Library’s Tribal Libraries Program Coordinator), Teresa Naranjo and Charles Suazo (of the Santa Clara Pueblo Library) and Rexine Calvert (of the P’oe Tsawa Community Library). Evaluation surveys indicate that the workshop met or exceeded 100% of participants’ expectations, and that activities could be made culturally relevant by the participants. Based on input from tribal advisors, the focus topic was space science (although there was also significant interest in various Earth science and environmental topics and in engineering design). These advisors also suggested that the workshop focus on co-design to enable the workshop participants to share and consider ways to make the content and activities culturally-relevant.

The team selected space STEM activities that could be done within library programs and that were within different categories:

• Passive programming activities (which were available while participants were arriving)
• Physically active activities
• Engineering design activities
• Art/Science, Technology, Engineering, Art, & Mathematics (STEAM) activities

After each type of activity, participants discussed aspects of the activities that they liked, modifications to make the activity more culturally-relevant for their Tribal community, and other activities within that category.

Throughout the workshop, Christine and Claire reiterated that the participants’ thoughts and input were critical—that they were the keepers of knowledge of their communities and that their voices were respected.

One participant stated, “I like how the instructors were re-assuring throughout the session. Making sure everyone was comfortable and making it feel safe to share ideas.” Another, said, “I tend to not participate, but observe, because I’m not a scientist. It was awesome (feeling comfortable) to design too!”

Sixteen of the participants filled out and returned evaluation surveys handed out at the close of the workshop. Just over 50% of those survey responses indicated that the workshop exceeded expectations; all others indicated that it met expectations. Participants also indicated that the activities themselves enabled participants to co-design and make them culturally relevant; this likely is in reference to the discussions held after each activity about ways to apply and revise them. The discussion after a crater-creation activity was particularly extensive: participants discussed replacing the materials with local materials and incorporating aspects of the local topography and even local art. Several participants expressed the desire for more workshops.

The NASA@ My Library project is supported by NASA under cooperative agreement award number NNX16AE30A and is part of NASA’s Science Activation Portfolio. Learn more about how Science Activation connects NASA science experts, real content, and experiences with community leaders to do science in ways that activate minds and promote deeper understanding of our world and beyond: https://science.nasa.gov/learn

Where is all the water that may form oceans on distant planets and moons? The SPHEREx astrophysics mission will search the galaxy and take stock.

Every living organism on Earth needs water to survive, so scientists searching for life outside our solar system, are often guided by the phrase “follow the water.” Scheduled to launch no earlier than Thursday, Feb. 27, NASA’s SPHEREx (Spectro-Photometer for the History of the Universe, Epoch of Reionization, and Ices Explorer) mission will help in that quest.

After its ride aboard a SpaceX Falcon 9 from Vandenberg Space Force base in California, the observatory will search for water, carbon dioxide, carbon monoxide, and other key ingredients for life frozen on the surface of interstellar dust grains in the clouds of gas and dust where planets and stars eventually form.

While there are no oceans or lakes floating freely in space, scientists think these reservoirs of ice, bound to small dust grains, are where most of the water in our universe forms and resides. Additionally, the water in Earth’s oceans as well as those of other planets and moons in our galaxy likely originated in such locations.

The mission will focus on massive regions of gas and dust called molecular clouds. Within those, SPHEREx will also look at some newly formed stars and the disks of material around them from which new planets are born.

Although space telescopes such as NASA’s James Webb and retired Spitzer have detected water, carbon dioxide, carbon monoxide, and other compounds in hundreds of targets, the SPHEREx observatory is the first to be uniquely equipped to conduct a large-scale survey of the galaxy in search of water ice and other frozen compounds.

Rather than taking 2D images of a target like a star, SPHEREx will gather 3D data along its line of sight. That enables scientists to see the amount of ice present in a molecular cloud and observe how the composition of the ices throughout the cloud changes in different environments.

By making more than 9 million of these line-of-sight observations and creating the largest-ever survey of these materials, the mission will help scientists better understand how these compounds form on dust grains and how different environments can influence their abundance.  

Tip of the Iceberg

It makes sense that the composition of planets and stars would reflect the molecular clouds they formed in. However, researchers are still working to confirm the specifics of the planet formation process, and the universe doesn’t always match scientists’ expectations.

For example, a NASA mission launched in 1998, the Submillimeter Wave Astronomy Satellite (SWAS), surveyed the galaxy for water in gas form — including in molecular clouds — but found far less than expected.

“This puzzled us for a while,” said Gary Melnick, a senior astronomer at the Center for Astrophysics | Harvard & Smithsonian and a member of the SPHEREx science team. “We eventually realized that SWAS had detected gaseous water in thin layers near the surface of molecular clouds, suggesting that there might be a lot more water inside the clouds, locked up as ice.”

The mission team’s hypothesis also made sense because SWAS detected less oxygen gas (two oxygen atoms bound together) than expected. They concluded that the oxygen atoms were sticking to interstellar dust grains, and were then joined by hydrogen atoms, forming water. Later research confirmed this. What’s more, the clouds shield molecules from cosmic radiation that would otherwise break those compounds apart. As a result, water ice and other materials stored deep in a cloud’s interior are protected.

As starlight passes through a molecular cloud, molecules like water and carbon dioxide block certain wavelengths of light, creating a distinct signature that SPHEREx and other missions like Webb can identify using a technique called absorption spectroscopy.

In addition to providing a more detailed accounting of the abundance of these frozen compounds, SPHEREx will help researchers answer questions including how deep into molecular clouds ice begins to form, how the abundance of water and other ices changes with the density of a molecular cloud, and how that abundance changes once a star forms.

Powerful Partnerships

As a survey telescope, SPHEREx is designed to study large portions of the sky relatively quickly, and its results can be used in conjunction with data from targeted telescopes like Webb, which observe a significantly smaller area but can see their targets in greater detail.

“If SPHEREx discovers a particularly intriguing location, Webb can study that target with higher spectral resolving power and in wavelengths that SPHEREx cannot detect,” said Melnick. “These two telescopes could form a highly effective partnership.”

More About SPHEREx

SPHEREx is managed by NASA’s Jet Propulsion Laboratory in Southern California for the Astrophysics Division within the Science Mission Directorate at NASA Headquarters in Washington. BAE Systems (formerly Ball Aerospace) built the telescope and the spacecraft bus. The science analysis of the SPHEREx data will be conducted by a team of scientists located at 10 institutions in the U.S., two in South Korea, and one in Taiwan. Data will be processed and archived at IPAC at Caltech, which manages JPL for NASA. The mission principal investigator is based at Caltech with a joint JPL appointment. The SPHEREx dataset will be publicly available at the NASA/IPAC Infrared Science Archive.

For more information about the SPHEREx mission visit:

https://www.jpl.nasa.gov/missions/spherex/

News Media Contact

Calla Cofield
Jet Propulsion Laboratory, Pasadena, Calif.
626-808-2469
calla.e.cofield@jpl.nasa.gov

2025-020

For more than a decade, Tristan McKnight has been a driving force behind some of NASA’s most iconic events, orchestrating the behind-the-scenes magic that brings each historic moment to life while sharing the agency’s advancements with the public. 

As a multimedia producer on the audiovisual team at Johnson Space Center in Houston, McKnight produces and directs live broadcasts and manages event planning, coordination, and execution. From overseeing resources, mitigating risks, and communicating with stakeholders, he ensures every detail aligns seamlessly.  

McKnight has played an integral role in the audiovisual team’s coverage of major events including the Artemis II crew announcement, where NASA revealed the astronauts who will venture around the Moon and back, to Johnson’s 2023 Open House, which celebrated the agency’s 65th anniversary and the 25th anniversary of the International Space Station’s operations. These achievements highlight key milestones in human space exploration.  

A standout achievement was contributing to the Dorothy Vaughan Center in Honor of the Women of Apollo naming ceremony, held on the eve of the 55th anniversary of the Apollo 11 Moon landing. The event honored the unsung heroes who made humanity’s first steps on the Moon possible. 

The team’s dedication and passion are a testament to their commitment to sharing NASA’s legacy with the world. 

“Not only have these events been impactful to Johnson, but they have also resonated across the entire agency,” McKnight said. “That is what I’m most proud of!” 

One of McKnight’s most memorable events was the 2023 “Back in the Saddle,” an annual tradition designed to refocus Johnson’s workforce at the start of a new year and renew the center’s commitment to safety and mission excellence. McKnight recalled how the speaker transformed Johnson’s Teague Auditorium into a venue filled with drum kits, inspiring messages, and lighting displays. Each audience member, drumsticks in hand, participated in a lesson on teamwork and synchronization to create a metaphor for working in harmony toward a shared goal. 

Like many high-achieving professionals. McKnight has faced moments of self-doubt. Then he realized that he is exactly where he is supposed to be. “As I settled into my role, I recognized that my contributions matter and simply being true to who I am adds value to the Johnson community,” he said.  

Each day brings its own set of challenges, ranging from minor issues like communication gaps and scheduling conflicts to major obstacles like technology failures. One of McKnight’s most valuable lessons is recognizing that there is no one-size-fits-all solution, and each situation requires a thoughtful analysis. 

McKnight understands the importance of the “check-and double-check,” a philosophy he considers crucial when working with technology. “Taking the extra time to do your due diligence, or even having someone else take a look, can make all the difference,” he said. 

“The challenges I’ve faced helped me grow as a problem solver and taught me valuable lessons on resilience and adaptability in the workplace,” he said. McKnight approaches obstacles with a level head, focusing on effective solutions rather than dwelling on the problem. 

As humanity looks to the stars, McKnight is energized about the future of exploration, particularly advancements in spacesuit and rocket technology that will enable us to travel farther, faster, and safer than ever before. His work, though grounded on Earth, helps create the inspiration that fuels these bold endeavors. 

“My hope for the next generation is that they dive deeper into their curiosity—exploring not only the world around them but also the Moon, planets, and beyond,” he said. “I also hope they carry forward the spirit of resilience and a commitment to making the world a better place for all.” 

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One of three small lunar rovers that are part of a NASA technology demonstration called CADRE (Cooperative Autonomous Distributed Robotic Exploration) is prepared for shipping in a clean room at the agency's Jet Propulsion Laboratory in Southern California on Jan. 29, 2025.

In Aug. 2024, a team of NASA researchers and partners gathered in Missoula, to test new drone-based technology for localized forecasting, or micrometeorology. Researchers attached wind sensors to a drone, NASA’s Alta X quadcopter, aiming to provide precise and sustainable meteorological data to help predict fire behavior.

Wildfires are increasing in number and severity around the world, including the United States, and wind is a major factor. It leads to unexpected and unpredictable fire growth, public threats, and fire fatalities, making micrometeorology a very effective tool to combat fire.

The campaign was run by NASA’s FireSense project, focused on addressing challenges in wildland fire management by putting NASA science and technology in the hands of operational agencies.

“Ensuring that the new technology will be easily adoptable by operational agencies such as the U.S. Forest Service and the National Weather Service was another primary goal of the campaign,” said Jacquelyn Shuman, FireSense project scientist at NASA’s Ames Research Center in California’s Silicon Valley.

The FireSense team chose the Alta X drone because the U.S. Forest Service already has a fleet of the quadcopters and trained drone pilots, which could make integrating the needed sensors – and the accompanying infrastructure – much easier and more cost-effective for the agency.

The choice of the two sensors for the drone’s payload was also driven by their adoptability.

The first, called a radiosonde, measures wind direction and speed, humidity, temperature, and pressure, and is used daily by the National Weather Service. The other sensor, an anemometer, measures wind speed and direction, and is used at weather stations and airports around the world.

“Anemometers are everywhere, but are usually stationary,” said Robert McSwain, the FireSense uncrewed aerial system (UAS) lead, based at NASA’s Langley Research Center in Hampton, Virginia. “We are taking a sensor type that is already used all over the world, and giving it wings.”

Both sensors create datasets that are already familiar to meteorologists worldwide, which opens up the potential applications of the platform.

Current Forecasting Methods: Weather Balloons

Traditionally, global weather forecasting data is gathered by attaching a radiosonde to a weather balloon and releasing it into the air. This system works well for regional weather forecasts. But the rapidly changing environment of wildland fire requires more recurrent, pinpointed forecasts to accurately predict fire behavior. It’s the perfect niche for a drone.

“These drones are not meant to replace the weather balloons,” said Jennifer Fowler, FireSense’s project manager at Langley. “The goal is to create a drop-in solution to get more frequent, localized data for wildfires – not to replace all weather forecasting.”

Drones Provide Control, Repeat Testing, Sustainability

Drones can be piloted to keep making measurements over a precise location – an on-site forecaster could fly one every couple of hours as conditions change – and gather timely data to help determine how weather will impact the direction and speed of a fire.

Fire crews on the ground may need this information to make quick decisions about where to deploy firefighters and resources, draw fire lines, and protect nearby communities.

A reusable platform, like a drone, also reduces the financial and environmental impact of forecasting flights. 

“A weather balloon is going to be a one-off, and the attached sensor won’t be recovered,” Fowler said. “The instrumented drone, on the other hand, can be flown repeatedly.”

The Missoula Campaign

Before such technology can be sent out to a fire, it needs to be tested. That’s what the FireSense team did this summer.

McSwain described the conditions in Missoula as an “alignment of stars” for the research: the complex mountain terrain produces erratic, historically unpredictable winds, and the sparsity of monitoring instruments on the ground makes weather forecasting very difficult. During the three-day campaign, several fires burned nearby, which allowed researchers to test how the drones performed in smokey conditions.

A drone team out of NASA Langley conducted eight data-collection flights in Missoula. Before each drone flight, student teams from the University of Idaho in Moscow, Idaho, and Salish Kootenai College in Pablo, Montana, launched a weather balloon carrying the same type of radiometer.

Once those data sets were created, they needed to be transformed into a usable format. Meteorologists are used to the numbers, but incident commanders on an active fire need to see the data in a form that allows them to quickly understand which conditions are changing, and how. That’s where data visualization partners come in. For the Missoula campaign, teams from MITRE, NVIDIA, and Esri joined NASA in the field.

Measurements from both the balloon and the drone platforms were immediately sent to the on-site data teams. The MITRE team, together with NVIDIA, tested high-resolution artificial intelligence meteorological models, while the Esri team created comprehensive visualizations of flight paths, temperatures, and wind speed and direction. These visual representations of the data make conclusions more immediately apparent to non-meteorologists.

What’s Next?

Development of drone capabilities for fire monitoring didn’t begin in Missoula, and it won’t end there.

“This campaign leveraged almost a decade of research, development, engineering, and testing,” said McSwain. “We have built up a UAS flight capability that can now be used across NASA.”

The NASA Alta X and its sensor payload will head to Alabama and Florida in spring 2025, incorporating improvements identified in Montana. There, the team will perform another technology demonstration with wildland fire managers from a different region.

To view more photos from the FireSense campaign visit: https://nasa.gov/firesense

The FireSense project is led by NASA Headquarters in Washington and sits within the Wildland Fires program, with the project office based at NASA Ames. The goal of FireSense is to transition Earth science and technological capabilities to operational wildland fire management agencies, to address challenges in U.S. wildland fire management before, during, and after a fire. 

Before arriving at the Moon, the small satellite mission will use the gravity of the Sun, Earth, and Moon over several months to gradually line up for capture into lunar orbit.

NASA’s Lunar Trailblazer arrived in Florida recently in advance of its launch later this month and has been integrated with a SpaceX Falcon 9 rocket. Shipped from Lockheed Martin Space in Littleton, Colorado, the small satellite is riding along on Intuitive Machines’ IM-2 launch — part of NASA’s CLPS (Commercial Lunar Payload Services) initiative — which is slated for no earlier than Thursday, Feb. 26, from Launch Complex 39A at the agency’s Kennedy Space Center.

Approximately 48 minutes after launch, Lunar Trailblazer will separate from the rocket and begin its independent flight to the Moon. The small satellite will discover where the Moon’s water is, what form it is in, and how it changes over time, producing the best-yet maps of water on the lunar surface. Observations gathered during its two-year prime mission will contribute to the understanding of water cycles on airless bodies throughout the solar system while also supporting future human and robotic missions to the Moon by identifying where water is located.

Key to achieving these goals are the spacecraft’s two state-of-the-art science instruments: the High-resolution Volatiles and Minerals Moon Mapper (HVM³) infrared spectrometer and the Lunar Thermal Mapper (LTM) infrared multispectral imager. The HVM³ instrument was provided by NASA’s Jet Propulsion Laboratory in Southern California and LTM was built by the University of Oxford and funded by the UK Space Agency.

“The small team is international in scope, which is more typical of larger projects,” said Andy Klesh, Lunar Trailblazer’s project systems engineer at JPL. “And unlike the norm for small missions that may only have a very focused, singular purpose, Lunar Trailblazer has two high-fidelity instruments onboard. We are really punching above our weight.”

Intricate Navigation

Before it can use these instruments to collect science data, Lunar Trailblazer will for several months perform a series of Moon flybys, thruster bursts, and looping orbits. These highly choreographed maneuvers will eventually position the spacecraft so it can map the surface in great detail.

Weighing only 440 pounds (200 kilograms) and measuring 11.5 feet (3.5 meters) wide when its solar panels are fully deployed, Lunar Trailblazer is about the size of a dishwasher and has a relatively small engine. To make its four-to-seven-month trip to the Moon (depending on the launch date) as efficient as possible, the mission’s design and navigation team has planned a trajectory that will use the gravity of the Sun, Earth, and Moon to guide the spacecraft — a technique called low-energy transfer.

“The initial boost provided by the rocket will send the spacecraft past the Moon and into deep space, and its trajectory will then be naturally reshaped by gravity after several lunar flybys and loops around Earth. This will allow it to be captured into lunar orbit with minimal propulsion needs,” said Gregory Lantoine, Lunar Trailblazer’s mission design and navigation lead at JPL. “It’s the most fuel-efficient way to get to where we need to go.”

As it flies past the Moon several times, the spacecraft will use small thruster bursts — aka trajectory correction maneuvers — to slowly change its orbit from highly elliptical to circular, bringing the satellite down to an altitude of about 60 miles (100 kilometers) above the Moon’s surface.

Arriving at the Moon

Once in its science orbit, Lunar Trailblazer will glide over the Moon’s surface, making 12 orbits a day and observing the surface at a variety of different times of day over the course of the mission. The satellite will also be perfectly placed to peer into the permanently shadowed craters at the Moon’s South Pole, which harbor cold traps that never see direct sunlight. If Lunar Trailblazer finds significant quantities of ice at the base of the craters, those locations could be pinpointed as a resource for future lunar explorers.

The data the mission collects will be transmitted to NASA’s Deep Space Network and delivered to Lunar Trailblazer’s new operations center at Caltech’s IPAC in Pasadena, California. Working alongside the mission’s experienced team will be students from Caltech and nearby Pasadena City College who are involved in all aspects of the mission, from operations and communications to developing software.

Lunar Trailblazer was a selection of NASA’s SIMPLEx (Small Innovative Missions for Planetary Exploration), which provides opportunities for low-cost science spacecraft to ride-share with selected primary missions. To maintain the lower overall cost, SIMPLEx missions have a higher risk posture and lighter requirements for oversight and management. This higher risk acceptance allows NASA to test pioneering technologies, and the definition of success for these missions includes the lessons learned from more experimental endeavors.

“We are a small mission with groundbreaking science goals, so we will succeed by embracing the flexibility that’s built into our organization,” said Lee Bennett, Lunar Trailblazer operations lead with IPAC. “Our international team consists of seasoned engineers, science team members from several institutions, and local students who are being given the opportunity to work on a NASA mission for the first time.”

More About Lunar Trailblazer

Lunar Trailblazer is led by Principal Investigator Bethany Ehlmann of Caltech in Pasadena, California. Caltech also leads the mission’s science investigation and mission operations. This includes planning, scheduling, and sequencing of all science, instrument, and spacecraft activities during the nominal mission. Science data processing will be done in the Bruce Murray Laboratory for Planetary Visualization at Caltech. NASA’s Jet Propulsion Laboratory in Southern California manages Lunar Trailblazer and provides system engineering, mission assurance, the HVM3 instrument, and mission design and navigation. Lockheed Martin Space provides the spacecraft, integrates the flight system, and supports operations under contract with Caltech. University of Oxford developed and provided the LTM instrument. Part of NASA’s Lunar Discovery Exploration Program, the mission is managed by NASA’s Planetary Mission Program Office at Marshall Space Flight Center in Huntsville, Alabama, for the agency’s Science Mission Directorate in Washington.

For more information about Lunar Trailblazer, visit:

https://www.jpl.nasa.gov/missions/lunar-trailblazer

News Media Contacts

Karen Fox / Molly Wasser
NASA Headquarters, Washington
202-358-1600
karen.c.fox@nasa.gov / molly.l.wasser@nasa.gov

Ian J. O’Neill
Jet Propulsion Laboratory, Pasadena, Calif.
818-354-2649
ian.j.oneill@jpl.nasa.gov

Isabel Swafford
Caltech IPAC
626-216-4257
iswafford@ipac.caltech.edu

2025-021

NASA’s Artemis campaign will send astronauts, payloads, and science experiments into deep space on NASA’s SLS (Space Launch System) super heavy-lift Moon rocket. Starting with Artemis IV, the Orion spacecraft and its astronauts will be joined by other payloads atop an upgraded version of the SLS, called Block 1B. SLS Block 1B will deliver initial elements of a lunar space station designed to enable long term exploration of the lunar surface and pave the way for future journeys to Mars. To fly these advanced payloads, engineers at NASA’s Marshall Space Flight Center in Huntsville, Alabama, are building a cone-shaped adapter that is key to SLS Block 1B.

The payload adapter, nestled within the universal stage adapter sitting atop the SLS Block 1B’s exploration upper stage, acts as a connecting point to secure a large payload that is co-manifested – or flying along with – the Orion spacecraft. The adapter consists of eight composite panels with an aluminum honeycomb core and two aluminum rings.

Beginning with the Artemis IV mission, SLS Block 1B will feature a new, more powerful upper stage that provides a substantial increase in payload mass, volume, and energy over the first variant of the rocket that is launching Artemis missions I through III. SLS Block 1B can send 84,000 pounds of payload – including both a crewed Orion spacecraft and a 10-metric ton (22,046 lbs.) co-manifested payload riding in a separate cargo compartment – to the Moon in a single launch.

Artemis IV’s co-manifested payload will be the Lunar I-Hab, one of the initial elements of the Gateway lunar space station. Built by ESA (European Space Agency), the Lunar I-Hab provides expanded capability for astronauts to live, work, conduct science experiments, and prepare for their missions to the lunar surface.

Before the Artemis IV mission structure was finalized, NASA engineers needed to design and test the new payload adapter.

“With SLS, there’s an intent to have as much commonality between flights as possible,” says Brent Gaddes, Lead for the Orion Stage Adapter and Payload Adapter in the SLS Spacecraft/Payload Integration & Evolution Office at NASA Marshall.

However, with those payloads changing typically every flight, the connecting payload adapter must change as well.

“We knew there needed to be a lot of flexibility to the payload adapter, and that we needed to be able to respond quickly in-house once the payloads were finalized,” says Gaddes.

A Flexible Approach

The required flexibility was not going to be satisfied with a one-size-fits-all approach, according to Gaddes.

Since different size payload adapters could be needed, Marshall is using a flexible approach to assemble the payload adapter that eliminates the need for heavy and expensive tooling used to hold the parts in place during assembly.  A computer model of each completed part is created using a process called structured light scanning. The computer model provides the precise locations where holes need to be drilled to hold the parts together so that the completed payload adapter will be exactly the right size.

“Structured light has helped us reduce costs and increase flexibility on the payload adapter and allows us to pivot,” says Gaddes. “If the call came down to build a cargo version of SLS to launch 40 metric tons, for example, we can use our same tooling with the structured light approach to adapt to different sizes, whether that’s for an adapter with a larger diameter that’s shorter, or one with a smaller diameter that’s longer. It’s faster and cheaper.”  

NASA Marshall engineers use an automated placement robot to manufacture eight lightweight composite panels from a graphite epoxy material. The robot performs fast, accurate lamination following preprogrammed paths, its high speed and precision resulting in lower cost and significantly faster production than other manufacturing methods.

At NASA Marshall, an engineering development unit of the payload has been successfully tested which demonstrated that it can handle up to three times the expected load. Another test version currently in development, called the qualification unit, will also be tested to NASA standards for composite structures to ensure that the flight unit will perform as expected.

“The payload adapter is shaped like a cone, and historically, most of the development work on structures like this has been on cylinders, so that’s one of the many reasons why testing it is so important,” says Gaddes. “NASA will test as high a load as possible to learn what produces structural failure. Any information we learn here will feed directly into the body of information NASA has pulled together over the years on how to analyze structures like this, and of course that’s something that’s shared with industry as well. It’s a win for everybody.”

With Artemis, NASA will explore more of the Moon than ever before, learn how to live and work away from home, and prepare for future human exploration of the Red Planet. NASA’s SLS (Space Launch System) rocket, exploration ground systems, and Orion spacecraft, along with the human landing system, next-generation spacesuits, Gateway lunar space station, and future rovers are NASA’s foundation for deep space exploration.

News Media Contact

Jonathan Deal
Marshall Space Flight Center, Huntsville, Ala. 
256-544-0034 
jonathan.e.deal@nasa.gov

When NASA’s Artemis IV astronauts journey to the Moon, they will make the inaugural visit to Gateway, humanity’s first space station in lunar orbit. Shown here, technicians carefully guide HALO (Habitation and Logistics Outpost)—a foundational element of Gateway—onto a stand in the cleanroom at Thales Alenia Space in Turin, Italy. The element’s intricate structure, designed to support astronauts and science in lunar orbit, has entered the cleanroom after successfully completing a series of rigorous environmental stress tests.

In the cleanroom, technicians will make final installations before preparing the module for transport to the United States, a key milestone on its path to launch. This process includes installing and testing valves and hatches, performing leak checks, and integrating external secondary structures. Once these steps are finished, the module will be packaged for shipment to Gilbert, Arizona, where Northrop Grumman will complete its outfitting.

As one of Gateway’s four pressurized modules, HALO will provide Artemis astronauts with space to live, work, conduct scientific research, and prepare for missions to the lunar surface. The module will also support internal and external science payloads, including a space weather instrument suite attached via a Canadian Space Agency Small Orbital Replacement Unit Robotic Interface, host the Lunar Link communications system developed by European Space Agency, and offer docking ports for visiting vehicles, including lunar landers and NASA’s Orion spacecraft.

Developed in collaboration with industry and international partners, Gateway is a cornerstone of NASA’s Artemis campaign to advance science and exploration on and around the Moon in preparation for the next giant leap: the first human missions to Mars.

Science in Space: February 2025

February was first proclaimed as American Heart Month in 1964. Since then, its 28 (or 29) days have served as an opportunity to encourage people to focus on their cardiovascular health.

The International Space Station serves as a platform for a variety of ongoing research on human health, including how different body systems adapt to weightlessness. This research includes assessing cardiovascular health in astronauts during and after spaceflight and other studies using models of the cardiovascular system, such as tissue cultures. The goal of this work is to help promote heart health for humans in space and everyone on Earth. For this Heart Month, here is a look at some of this spaceflight research

Building a better heart model

Microgravity exposure is known to cause changes in cardiovascular function. Engineered Heart Tissues assessed these changes using 3D cultured cardiac tissues that model the behavior of actual heart tissues better than traditional cell cultures. When exposed to weightlessness, these “heart-on-a-chip” cells behaved in a manner similar to aging on Earth. This finding suggests that these engineered tissues can be used to investigate the effects of space radiation and long-duration spaceflight on cardiac function. Engineered tissues also could support development of measures to help protect crew members during a mission to Mars. Advanced 3D culture methodology may inform development of strategies to prevent and treat cardiac diseases on Earth as well.

Private astronaut heart health

For decades, human research in space has focused on professional and government-agency astronauts, but commercial spaceflight opportunities now allow more people to participate in microgravity research. Cardioprotection Ax-1 analyzed cardiovascular and general health in private astronauts on the 17-day Axiom-1 mission.

The study found that 14 health biomarkers related to cardiac, liver, and kidney health remained within normal ranges during the mission, suggesting that spaceflight did not significantly affect the health of the astronaut subjects. This study paves the way for monitoring and studying the effects of spaceflight on private astronauts and developing health management plans for commercial space providers.

Better measurements for better health

Vascular Echo, an investigation from CSA (Canadian Space Agency), examined blood vessels and the heart using a variety of tools, including ultrasound. A published study suggests that 3D imaging technology might better measure cardiac and vascular anatomy than the 2D system routinely used on the space station. The research team also developed a probe for the ultrasound device that better directs the beam, making it possible for someone who is not an expert in sonography to take precise measurements. This technology could help astronauts monitor heart health and treat cardiovascular issues on a long-duration mission to the Moon or Mars. The technology also could help patients on Earth who live in remote locations, where an ultrasound operator may not always be available.

Long-term heart health in space

As part of exploring ways to keep astronauts healthy on missions to the Moon and Mars, NASA is conducting a suite of space station studies called CIPHER that looks at the effects of spaceflight lasting up to a year. One CIPHER study, Vascular Calcium, examines whether calcium lost from bone during spaceflight might deposit in the arteries, increasing vessel stiffness and contributing to increased risk of future cardiovascular disease. Astronaut volunteers provide blood and urine samples and undergo ultrasound and high-resolution scans of their bones and arteries for this investigation. Another CIPHER study, Coronary Responses, uses advanced imaging tests to measure heart and artery response to spaceflight.

These studies will help scientists determine whether spaceflight accelerates narrowing and stiffening of the arteries, known as atherosclerosis, or increases the risk of atrial fibrillation, a rapid and irregular heartbeat seen in middle-aged adults. This work also could help identify potential biomarkers and early warning indicators of cardiovascular disease.

Melissa Gaskill

International Space Station Research Communications Team

Johnson Space Center

We’ve been talking about this for 2,000 years. Aristotle mentions it. And in our own time, scientists are designing experiments to figure out exactly what’s going on. But there’s no consensus yet.

Here’s what we do know.

The atmosphere isn’t magnifying the Moon. If anything, atmospheric refraction squashes it a little bit. And the Moon’s not closer to us at the horizon. It’s about 1.5 percent farther away. Also, it isn’t just the Moon. Constellations look huge on the horizon, too.

One popular idea is that this is a variation on the Ponzo illusion. Everything in our experience seems to shrink as it recedes toward the horizon — I mean clouds and planes and cars and ships. But the Moon doesn’t do that. So our minds make up a story to reconcile this inconsistency. Somehow the Moon gets bigger when it’s at the horizon. That’s one popular hypothesis, but there are others. And we’re still waiting for the experiment that will convince everyone that we understand this.

So why does the Moon look larger on the horizon? We don’t really know, but scientists are still trying to figure it out.

[END VIDEO TRANSCRIPT]

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A bouquet of thousands of stars in bloom has arrived. This composite image contains the deepest X-ray image ever made of the spectacular star forming region called 30 Doradus.

By combining X-ray data from NASA’s Chandra X-ray Observatory (blue and green) with optical data from NASA’s Hubble Space Telescope (yellow) and radio data from the Atacama Large Millimeter/submillimeter Array (orange), this stellar arrangement comes alive.

Otherwise known as the Tarantula Nebula, 30 Dor is located about 160,000 light-years away in a small neighboring galaxy to the Milky Way known as the Large Magellanic Cloud (LMC). Because it one of the brightest and populated star-forming regions to Earth, 30 Dor is a frequent target for scientists trying to learn more about how stars are born.

With enough fuel to have powered the manufacturing of stars for at least 25 million years, 30 Dor is the most powerful stellar nursery in the local group of galaxies that includes the Milky Way, the LMC, and the Andromeda galaxy.

The massive young stars in 30 Dor send cosmically strong winds out into space. Along with the matter and energy ejected by stars that have previously exploded, these winds have carved out an eye-catching display of arcs, pillars, and bubbles.

A dense cluster in the center of 30 Dor contains the most massive stars astronomers have ever found, each only about one to two million years old. (Our Sun is over a thousand times older with an age of about 5 billion years.)

This new image includes the data from a large Chandra program that involved about 23 days of observing time, greatly exceeding the 1.3 days of observing that Chandra previously conducted on 30 Dor. The 3,615 X-ray sources detected by Chandra include a mixture of massive stars, double-star systems, bright stars that are still in the process of forming, and much smaller clusters of young stars.

There is a large quantity of diffuse, hot gas seen in X-rays, arising from different sources including the winds of massive stars and from the gas expelled by supernova explosions. This data set will be the best available for the foreseeable future for studying diffuse X-ray emission in star-forming regions.

The long observing time devoted to this cluster allows astronomers the ability to search for changes in the 30 Dor’s massive stars. Several of these stars are members of double star systems and their movements can be traced by the changes in X-ray brightness.

A paper describing these results appears in the July 2024 issue of The Astrophysical Journal Supplement Series. NASA’s Marshall Space Flight Center manages the Chandra program. The Smithsonian Astrophysical Observatory’s Chandra X-ray Center controls science operations from Cambridge, Massachusetts, and flight operations from Burlington, Massachusetts.

Read more from NASA’s Chandra X-ray Observatory.

Learn more about the Chandra X-ray Observatory and its mission here:

https://www.nasa.gov/chandra

https://chandra.si.edu

Visual Description

This release features a highly detailed composite image of a star-forming region of space known as 30 Doradus, shaped like a bouquet, or a maple leaf.

30 Doradus is a powerful stellar nursery. In 23 days of observation, the Chandra X-ray telescope revealed thousands of distinct star systems. Chandra data also revealed a diffuse X-ray glow from winds blowing off giant stars, and X-ray gas expelled by exploding stars, or supernovas.

In this image, the X-ray wind and gas takes the shape of a massive purple and pink bouquet with an extended central flower, or perhaps a leaf from a maple tree. The hazy, mottled shape occupies much of the image, positioned just to our left of center, tilted slightly to our left. Inside the purple and pink gas and wind cloud are red and orange veins, and pockets of bright white light. The pockets of white light represent clusters of young stars. One cluster at the heart of 30 Doradus houses the most massive stars astronomers have ever found.

The hazy purple and pink bouquet is surrounded by glowing dots of green, white, orange, and red. A second mottled purple cloud shape, which resembles a ring of smoke, sits in our lower righthand corner.

News Media Contact

Megan Watzke
Chandra X-ray Center
Cambridge, Mass.
617-496-7998
mwatzke@cfa.harvard.edu

Lane Figueroa
Marshall Space Flight Center, Huntsville, Alabama
256-544-0034
lane.e.figueroa@nasa.gov

NASA’s Nancy Grace Roman Space Telescope team has successfully integrated the mission’s deployable aperture cover — a visor-like sunshade that will help prevent unwanted light from entering the telescope — to the outer barrel assembly, another structure designed to shield the telescope from stray light in addition to keeping it at a stable temperature.

“It’s been incredible to see these major components go from computer models to building and now integrating them,” said Sheri Thorn, an aerospace engineer working on Roman’s sunshade at NASA’s Goddard Space Flight Center in Greenbelt, Maryland. “Since it’s all coming together at Goddard, we get a front row seat to the process. We’ve seen it mature, kind of like watching a child grow up, and it’s a really gratifying experience.”

The sunshade functions like a heavy-duty version of blackout curtains you might use to keep your room extra dark. It will make Roman more sensitive to faint light from across the universe, helping astronomers see dimmer and farther objects. Made of two layers of reinforced thermal blankets, the sunshade is designed to remain folded during launch and deploy after Roman is in space. Three booms will spring upward when triggered electronically, raising the sunshade like a page in a pop-up book.

The sunshade blanket has an inner and outer layer separated by about an inch, much like a double-paned window. “We’re prepared for micrometeoroid impacts that could occur in space, so the blanket is heavily fortified,” said Brian Simpson, Roman’s deployable aperture cover lead at NASA Goddard. “One layer is even reinforced with Kevlar, the same thing that lines bulletproof vests. By placing some space in between the layers we reduce the risk that light would leak in, because it’s unlikely that the light would pass through both layers at the exact same points where the holes were.”
 
Over the course of a few hours, technicians meticulously joined the sunshade to the outer barrel assembly — both Goddard-designed components — in the largest clean room at NASA Goddard. The outer barrel assembly will help keep the telescope at a stable temperature and, like the sunshade, help shield the telescope from stray light and micrometeoroid impacts. It’s fitted with heaters to help ensure the telescope’s mirrors won’t experience wide temperature swings, which make materials expand and contract.
 
“Roman is made up of a lot of separate components that come together after years of design and fabrication,” said Laurence Madison, a mechanical engineer at NASA Goddard. “The deployable aperture cover and outer barrel assembly were built at the same time, and up until the integration the two teams mainly used reference drawings to make sure everything would fit together as they should. So the successful integration was both a proud moment and a relief!”

Both the sunshade and outer barrel assembly have been extensively tested individually, but now that they’re connected engineers are assessing them again. Following the integration, the team tested the sunshade deployment.
 
“Since the sunshade was designed to deploy in space, the system isn’t actually strong enough to deploy itself in Earth’s gravity,” said Matthew Neuman, a mechanical engineer working on Roman’s sunshade at NASA Goddard. “So we used a gravity negation system to offset its weight and verified that everything works as expected.”
 
Next, the components will undergo thermal vacuum testing together to ensure they will function as planned in the temperature and pressure environment of space. Then they’ll move to a shake test to assess their performance during the extreme vibrations they’ll experience during launch.
 
Technicians will join Roman’s solar panels to the outer barrel assembly and sunshade this spring, and then integrate them with the rest of the observatory by the end of the year. 
 
The mission has now passed a milestone called Key Decision Point-D, marking the official transition from the fabrication stage that culminated in the delivery of major components to the phase involving assembly, integration, testing, and launch. The Roman observatory remains on track for completion by fall 2026 and launch no later than May 2027.
 
To virtually tour an interactive version of the telescope, visit:
 
https://roman.gsfc.nasa.gov/interactive/

By Ashley Balzer
NASA’s Goddard Space Flight Center, Greenbelt, Md.

Media contact:

Claire Andreoli
NASA’s Goddard Space Flight Center, Greenbelt, Md.
301-286-1940

Glenn Employees Earn Presidential Early Career Awards for Scientists and Engineers

Two NASA Glenn Research Center employees were among 19 agency researchers recognized as recipients of the Presidential Early Career Award for Scientists and Engineers (PECASE). 

Lyndsey McMillon-Brown was recognized for leadership in photovoltaic research, development, and demonstrations. She was the principal investigator for a Science Technology Mission Directorate-funded Early Career Initiative where she led the development of perovskite photovoltaics, which can be manufactured in space. The team achieved sun-to-electricity power conversion efficiencies of 18%. They tested the durability of the solar cells by flying them in low Earth orbit for 10 months on the Materials International Space Station Experiment platform.   

Timothy M. Smith was recognized for achievements in materials science research, specifically in high-temperature alloy innovation. Building upon his dissertation work, he designed a new high-temperature superalloy with radically improved high-temperature durability. Additionally, he helped develop a new manufacturing process that could produce new metal alloys strengthened by nano oxide particles. This led to the development of a revolutionary high- temperature alloy (GRX-810) designed specifically for additive manufacturing.  

The PECASE Award is the highest honor given by the U.S. government to scientists and engineers who are beginning their research careers.  

NASA Glenn Employee Named AIAA Fellow

Brett A. Bednarcyk, a materials research engineer at NASA’s Glenn Research Center in Cleveland, has been named an American Institute of Aeronautics and Astronautics (AIAA) Fellow. His work is focused on multiscale modeling and integrated computational materials engineering of composite materials and structures. He has co-authored two textbooks on these subjects. 

AIAA Fellows are recognized for their notable and valuable contributions to the arts, sciences, or technology of aeronautics and astronautics.  

Glenn’s Dr. Heather Oravec Named Outstanding Civil Engineer  

The American Society of Civil Engineers (ASCE) Cleveland Chapter has named Dr. Heather Oravec, a mechanical engineering research associate professor supporting NASA Glenn Research Center’s Engineering and Research Support (GEARS) contract team, the 2024 Outstanding Civil Engineer of the Year. Oravec is a research leader in the areas of terramechanics and off-road tire development for planetary rovers and works in NASA Glenn’s Simulated Lunar Operations (SLOPE) Lab. 

This award honors a civil engineer who has made significant contributions to the field and to the community, furthering the recognition of civil engineers through work and influence.