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. 

An experiment studying how solid materials catch fire and burn in the Moon’s gravity was launched on Blue Origin’s New Shepard suborbital flight this month. 

Developed by NASA’s Glenn Research Center in Cleveland together with Voyager Technologies, the Lunar-g Combustion Investigation (LUCI) will help researchers determine if conditions on the Moon – with reduced gravity – might be a more hazardous environment for fire safety. 

On this flight, LUCI tested flammability of cotton-fiberglass fabric and plastic rods, and once launched, the payload capsule rotated at a speed to simulate lunar gravity. NASA Glenn researchers will analyze data post-flight.

LUCI’s findings will help NASA and its partners design safe spacecraft and spacesuits for future Moon and Mars missions. 

For more information on LUCI and the mission, visit. 

NASA observed its annual Day of Remembrance on Jan. 23, honoring the members of the NASA family who lost their lives in the pursuit of exploration and discovery for the benefit of humanity. The annual event acknowledges the crews of Apollo 1 and the space shuttles Challenger and Columbia. 

NASA Acting Administrator Janet Petro and astronaut Kayla Barron participated in an observance at Arlington National Cemetery in Arlington, Virginia. Wreaths were laid in memory of the men and women who lost their lives in the quest for space exploration. 

Several agency centers also held observances for NASA Day of Remembrance. NASA’s Glenn Research Center in Cleveland hosted an observance on Jan. 28 with remarks from Center Director Dr. Jimmy Kenyon and a keynote address from the acting director of NASA’s Kennedy Space Center in Florida, Kelvin Manning.  

Kenyon reflected on the loss of the astronauts and the impact on their families. A large part of honoring their legacy, he said, is committing to a culture of safety awareness and practices. Learning what went wrong is vital to safely moving forward into the future. He then introduced a video recognizing the fallen heroes.  

Manning, who worked with the families of the Apollo I astronauts to learn their stories and honor their legacy through an exhibit at NASA Kennedy, shared insights into the causes of the tragedy. He talked about the lessons learned through the investigation that resulted in increased measures for astronaut safety. 

Kenyon then carried a memorial wreath to the front of the stage. NASA Glenn’s Amanda Shalkhauser played Taps, which was followed by a moment of silence. 

NASA’s X-59 quiet supersonic research aircraft took another successful step toward flight with the conclusion of a series of engine performance tests.

In preparation for the X-59’s planned first flight this year, NASA and Lockheed Martin successfully completed the aircraft’s engine run tests in January. The engine, a modified F414-GE-100 that powers the aircraft’s flight and integrated subsystems, performed to expectations during three increasingly complicated tests that ran from October through January at contractor Lockheed Martin’s Skunk Works facility in Palmdale, California.

“We have successfully progressed through our engine ground tests as we planned,” said Raymond Castner, X-59 propulsion lead at NASA’s Glenn Research Center in Cleveland. “We had no major showstoppers. We were getting smooth and steady airflow as predicted from wind tunnel testing. We didn’t have any structural or excessive vibration issues. And parts of the engine and aircraft that needed cooling were getting it.”

The tests began with seeing how the aircraft’s hydraulics, electrical, and environmental control systems performed when the engine was powered up but idling. The team then performed throttle checks, bringing the aircraft up to full power and firing its afterburner – an engine component that generates additional thrust – to maximum.

A third test, throttle snaps, involved moving the throttle swiftly back and forth to validate that the engine responds instantly. The engine produces as much as 22,000 pounds of thrust to achieve a desired cruising speed of Mach 1.4 (925 miles per hour) at an altitude of approximately 55,000 feet.

The X-59’s engine, similar to those aboard the U.S. Navy’s F-18 Super Hornet, is mounted on top of the aircraft to reduce the level of noise reaching the ground. Many features of the X-59, including its 38-foot-long nose, are designed to lower the noise of a sonic boom to that of a mere “thump,” similar to the sound of a car door slamming nearby.

Next steps before first flight will include evaluating the X-59 for potential electromagnetic interference effects, as well as “aluminum bird” testing, during which data will be fed to the aircraft under both normal and failure conditions. A series of taxi tests and other preparations will also take place before the first flight.

The X-59 is the centerpiece of NASA’s Quesst mission, which seeks to solve one of the major barriers to commercial supersonic flight over land by making sonic booms quieter.

The mystique of Mars has been studied for centuries. The fourth planet from the Sun is reminiscent of a rich, red desert and features a rugged surface challenging to traverse. While several robotic missions have landed on Mars, NASA has only explored 1% of its surface. Ahead of future human and robotic missions to the Red Planet, NASA recently completed rigorous rover testing on Martian-simulated terrain, featuring revolutionary shape memory alloy spring tire technology developed at the agency’s Glenn Research Center in Cleveland in partnership with Goodyear Tire & Rubber.

Rovers — mobile robots that explore lunar or planetary surfaces — must be equipped with adequate tires for the environments they’re exploring. As Mars has an uneven, rocky surface, durable tires are essential for mobility. Shape memory alloy (SMA) spring tires help make that possible.

Shape memory alloys are metals that can return to their original shape after being bent, stretched, heated, and cooled. NASA has used them for decades, but applying this technology to tires is a fairly new concept.

“We at Glenn are one of the world leaders in bringing the science and understanding of how you change the alloy compositions, how you change the processing of the material, and how you model these systems in a way that we can control and stabilize the behaviors so that they can actually be utilized in real applications,” said Dr. Santo Padula II, materials research engineer at NASA Glenn.

Padula and his team have tested several applications for SMAs, but his epiphany of the possibilities for tires came about because of a chance encounter.

While leaving a meeting, Padula encountered Colin Creager, a mechanical engineer at NASA Glenn whom he hadn’t seen in years. Creager used the opportunity to tell him about the work he was doing in the NASA Glenn Simulated Lunar Operations (SLOPE) Laboratory, which can simulate the surfaces of the Moon and Mars to help scientists test rover performance. He brought Padula to the lab, where Padula immediately took note of the spring tires. At the time, they were made of steel.

Padula remarked, “The minute I saw the tire, I said, aren’t you having problems with those plasticizing?” Plasticizing refers to a metal undergoing deformation that isn’t reversible and can lead to damage or failure of the component.

“Colin told me, ‘That’s the only problem we can’t solve.’” Padula continued, “I said, I have your solution. I’m developing a new alloy that will solve that. And that’s how SMA tires started.”

From there, Padula, Creager, and their teams joined forces to improve NASA’s existing spring tires with a game-changing material: nickel-titanium SMAs. The metal can accommodate deformation despite extreme stress, permitting the tires to return to their original shape even with rigorous impact, which is not possible for spring tires made with conventional metal.

Since then, research has been abundant, and in the fall of 2024, teams from NASA Glenn traveled to Airbus Defence and Space in Stevenage, United Kingdom, to test NASA’s innovative SMA spring tires. Testing took place at the Airbus Mars Yard — an enclosed facility created to simulate the harsh conditions of Martian terrain.

“We went out there with the team, we brought our motion tracking system and did different tests uphill and back downhill,” Creager said. “We conducted a lot of cross slope tests over rocks and sand where the focus was on understanding stability because this was something we had never tested before.”

During the tests, researchers monitored rovers as the wheels went over rocks, paying close attention to how much the crowns of the tires shifted, any damage, and downhill sliding. The team expected sliding and shifting, but it was very minimal, and testing met all expectations. Researchers also gathered insights about the tires’ stability, maneuverability, and rock traversal capabilities.

As NASA continues to advance systems for deep space exploration, the agency’s Extravehicular Activity and Human Surface Mobility program enlisted Padula to research additional ways to improve the properties of SMAs for future rover tires and other potential uses, including lunar environments.

“My goal is to extend the operating temperature capability of SMAs for applications like tires, and to look at applying these materials for habitat protection,” Padula said. “We need new materials for extreme environments that can provide energy absorption for micrometeorite strikes that happen on the Moon to enable things like habitat structures for large numbers of astronauts and scientists to do work on the Moon and Mars.”

Researchers say shape memory alloy spring tires are just the beginning.