It’s the most energetic particle of its kind ever discovered, and scientists have no idea where it came from.

President Trump’s executive order is altering scientific exploration across a broad swath of fields, even beyond government agencies, researchers say.

NASA and European scientists explain how they calculate the probability of the space rock 2024 YR4 impacting our planet, and why it’s not yet time to worry.

After the space agency canceled its VIPER rover, an empty space was available on a private spacecraft that will still head to the lunar surface.

The government space agency has vocally promoted diversity and inclusion for decades, even during the first Trump administration.

Researchers say there’s a 1.3 percent chance that the space rock 2024 YR4 could strike our planet — but not until December 2032.

Scientists studying samples that NASA collected from the asteroid Bennu found a wide assortment of organic molecules that shed light on how life arose.

The founder of SpaceX said President Trump had asked his company to return two astronauts aboard the space station to Earth “as soon as possible.” NASA said it would do that “as soon as practical.”

Scientists think a small rock discovered near Earth last August was hurled into space by an ancient impact on the lunar surface.

The president’s Inaugural Address linked landing on the Red Planet with Manifest Destiny, but left many of the specifics unclear.

Home security-camera footage shows a puff of smoke, with the sound of an explosion included, as the space rock lands in Canada. A geologist said it was a rare recording.

While Elon Musk’s spaceflight company repeated a spectacular catch of its powerful booster stage, the upper stage experienced a catastrophic malfunction.

The successful flight to orbit of the Amazon founder’s powerful rocket suggests it could grow into a credible competitor with Elon Musk’s SpaceX.

Robotic vehicles from Firefly Aerospace of Texas and Ispace of Japan parted ways early Wednesday after being launched on the same SpaceX rocket. Both are aiming for the lunar surface.

The WNYC science program “Radiolab” partnered with the International Astronomical Union to solicit nearly 3,000 submissions. The Roman goddess of doorways and transitions won out.

On Monday night you may have a chance to witness the moon obscuring the Red Planet at its brightest, as well as a comet’s closest approach to the sun.

If New Glenn lifts off on Monday as planned, the Amazon founder’s rocket company will be on track to give Elon Musk’s SpaceX some genuine competition.

Charon is large in size relative to Pluto, and is locked in a tight orbit with the dwarf planet. A new simulation suggests how it ended up there.

No one was hurt by the object, believed to be part of a launch rocket. Experts say the frequency of such incidents is increasing as the amount of debris in orbit around the Earth grows dramatically.