Category: People of NASA

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Tribal Students Make Robots with NASA Aerospace Engineer Casey Denham

Source: NASA

Casey Denham, aerospace engineer with the Systems Analysis and Concepts Directorate at NASA’s Langley Research Center in Hampton, Virginia, works with tribal students during a STEM activity at the American Indian Engineering Sciences (AISES) National Conference in Spokane, Washington, Oct. 19-21, 2023. Denham, whose heritage is Meskwaki, was part of a NASA group that presented sessions and shared their passion about their work with more than 3500 attendees. Denham was previously a Pathways Intern at Langley.
View our Native American Heritage Month gallery.
Image credit:  NASA/Caroline Montgomery

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NASA Project Manager Helps Makes Impact in Southeast Asia with SERVIR

Source: NASA

By Celine Smith
“As the seedlings were placed in the water, I felt a moment of déjà vu,” said NASA scientist Tony Kim. “I was taken back to when I was a child playing in similar fields in South Korea. It felt like I was meant to be there bringing space to village with satellite data.”
As he looked at rice fields while visiting Bhutan in September 2023, Kim savored the chance to do something meaningful across Southeast Asia and also in his native country. Having seen his childhood home turn from rice fields to a city, Kim knows the importance of sustainably using the land.
In Bhutan, Kim and research partners are identifying rice paddies, estimating crop production, predicting shortages, and gauging the health of each harvest. He represents NASA as an international project manager for SERVIR, a partnership between NASA and USAID (U.S. Agency for International Development). It is a flagship program for Earth Action in NASA’s Earth Sciences Division, created in 2005 and rooted at NASA’s Marshall Space Flight Center in Huntsville, Alabama.
SERVIR – which means “to serve” in Spanish – aids more than 50 nations in Asia, Africa, and Latin America in their efforts to address issues like food and water security, droughts, and the negative effects of climate change. SERVIR assists regional, national, and local institutions by using NASA satellite data, models, and products to manage resources sustainably.
NASA and USAID launched its SERVIR Mekong hub in 2015 at the ADPC (Asian Disaster Preparedness Center) in Bangkok, Thailand. The hub has been renamed SERVIR Southeast Asia as of this year.  Other SERVIR hubs are in the Himalayas, West Africa, and the Amazon.

In addition to Bhutan, Kim also traveled back home to Seoul, South Korea – nearly 20 years since his last visit – to represent SERVIR Southeast Asia. “When I went back to Korea, I felt like a kid going back in time,” Kim said.
The USAID RDMA (Regional Development Mission for Asia), which funds SERVIR Southeast Asia requested Kim’s presence for a meeting with Korean leaders. He discussed the value of NASA satellite data for environmental decision-making with the Korean Ministry of Environment and USAID RDMA, as well as opportunities for collaboration to solve water issues in the Indo-Pacific region and natural resource management in the Lower Mekong sub-region.
“Korea recovered from war in the 1950’s and developed very quickly as a powerhouse for technology products. Now Korea is helping other developing countries in Asia,” Kim said. “I am so proud of my home country and my adopted country (through NASA) helping people around the world to use satellite data in productive ways.”
Kim was eight years old in 1974 when his family moved from the southern edge of Seoul to the suburbs of Chicago. “Our parents immigrated to the United States to give us the opportunity to better ourselves through education,” he said. After high school, he went to the University of Illinois, where he pursued a degree in aeronautical and astronautical engineering. After graduation, he joined Marshall as a propulsion engineer, testing cryogenic fluid management techniques for advanced rocket propulsion systems.
From there, Kim’s 33-year NASA journey led him through a variety of roles. He served in 1992 as an operations controller for two Spacelab missions. In 1996, he led an operation team for the International Space Station Furnace Facility. From 1998-2001, he was a payload operations manager for space station science payloads.
Marshall selected Kim to study at Auburn University in 1997, where he earned his master’s degree in material science. Afterwards, Kim attended the International Space University. Then, he led the ALTUS Cumulus Electrification Study, where an uninhabited aerial vehicle was used to study lightning during a thunderstorm.

Kim was selected in 2003 for the NASA Administrator’s Fellowship Program to teach a design engineering course at Texas A&M in Kingsville for one year. He spent the next year at NASA Headquarters in Washington. Kim returned to Marshall as a deep throttling rocket engine technology manager and then deputy manager for advanced nuclear thermal propulsion technology development.
In 2016, Kim served as deputy program manager for Centennial Challenges, NASA’s premier, large-prize program. Kim worked with Bradley University and Caterpillar in Peoria, Illinois, to conduct NASA’s 3D-printed Habitat Challenge.
“SERVIR was the only organization that could have taken me away from Centennial Challenges,” Kim said.

Tony kim
NASA Scientist

Kim and his wife, Sonya, live in Huntsville and have three grown children. He said the lessons his parents imparted remain as true today as when he was a small child.
“They taught us to work hard, keep your commitments, and care about what you do and the people you do it with,” he said. “If you do those things, you’ll find success.”
Jonathan Deal
Jonathan DealNASA’s Marshall Space Flight Centerjonathan.e.deal@nasa.gov256-544-0034

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NASA’s Modern History Makers: Sarah Tipler

Source: NASA

Growing up, Sarah Tipler always felt out of place. She had trouble with time management, structuring her day, and focusing her attention, but she didn’t know why.
“For all of my undergraduate education, I really struggled to keep up despite understanding the material,” Tipler said. “It took a ton of work to make good grades happen, including asking for extensions and pulling last-minute all-nighters. I used to beat myself up for my apparent lack of self-control.”
Tipler enrolled in college after high school but withdrew after facing depression and other mental health challenges. A few years later, she took another stab at school to become a French teacher but found the career wasn’t for her. After realizing studying computer science and engineering fascinated her, she applied for a Pathways internship at NASA’s Glenn Research Center in Cleveland.
“At NASA, I knew that I was working on the kinds of projects that are helping advance humanity’s knowledge of the universe and the world we live in,” she said.
It wasn’t until transitioning to a full-time computer scientist job at Glenn that she finally got some answers about herself.
“At NASA, I was feeling happy, I was in a great place in my life, and I was excited about where I was, but I was still struggling to effectively manage my workload,” she said. “That’s what led me to seek help and obtain a diagnosis of ADHD [attention-deficit/hyperactivity disorder], which has really helped me understand a lot of the issues that I’ve had in my life and put a lot of things in a different perspective.”
Tipler’s colleagues provided her encouragement and a support system, and she’s now helping NASA take its next giant leap with the Artemis missions.
Tipler’s team develops code that models the power systems of the International Space Station, the Orion spacecraft, and the Power and Propulsion Element (PPE) that will help propel Gateway, NASA’s future lunar space station. This SPACE (or system power analysis for capability evaluation) code can predict how much power is generated by solar arrays and determine whether it is sufficient to support important spacecraft systems, like life support and propulsion.
For example, throughout Gateway’s journey, the solar arrays that generate power for PPE won’t always be able to face the sun and generate maximum energy.
“We need to make sure that when Gateway is using its thrusters, which require a lot of electrical power, we’ll have enough for the rest of the spacecraft,” Tipler explains.
Tipler’s team is also developing a graphical user interface that will make it easier for the Flight Operations Directorate at NASA’s Johnson Space Center in Houston to use the code.
“It’s an incredible feeling to know that I’m some small part of that giant puzzle,” she said. “It makes all of the challenges and obstacles that I go through feel worth it when I get to sit down and look at things from the big picture.”
Learning to navigate ADHD has been a long journey, Tipler says, but her family, friends, fiancé, and five rambunctious cats have been there to cheer her up and encourage her. In addition, being able to work remotely from her home in northern New York has been critical to her success at work.
“I have found that teleworking and being fully remote has really helped with my ADHD because my focus isn’t always consistent, so this adds a lot more flexibility into my work life and has helped me be the best productive person I can be,” she said.
Ensuring open communication with coworkers and having conversations about expectations has also kept Tipler on the right track, and she has found ways to thrive.
“I think there are some really cool, unique perspectives that people living with different disabilities can bring to the workplace in the ways we think differently or work to overcome obstacles or problems,” she said.
Often, practices that help people with disabilities can be beneficial to all workers, Tipler says, such as offering written agendas and notes instead of just verbal information or being open to new workplace approaches.
“You don’t always need to know what someone is dealing with to make things better for everyone,” she said.
Tipler wants people working to overcome their own obstacles to know that they are not alone and to remind others that some disabilities, like ADHD, can seem invisible.
“Remember that you never know what someone else is going through,” she said. “The best approach is to operate with kindness.”
NASA is in a Golden Era of aeronautics and space exploration. In partnership with commercial and private businesses, NASA is currently making history with significant missions such as Artemis, Quesst, and electrified aviation. The NASA’s Modern History Makers series highlights members of NASA Glenn’s workforce who make these remarkable missions possible.
Ellen Bausback
NASA’s Glenn Research Center

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NASA, JAXA Benefit from Collaborative Fellowship Experience

Source: NASA

A yearlong journey of cultural and professional development overseas has a NASA Deep Space Logistics employee excited about current and future collaboration with one of America’s key international partners in the agency’s Artemis program.   
Katherine Cook, who develops cargo delivery services for NASA’s Gateway, recently returned to the agency’s Kennedy Space Center in Florida after an immersive experience in Japan. There, she collaborated with JAXA (Japan Aerospace Exploration Agency), government ministries contributing to Japan’s space activities, and The National Diet’s House of Representatives.

“Everything I did involved Artemis and human exploration,” Cook said. “Developing technologies for Moon to Mars is challenging, but if we can find a good balance of leveraging the strengths of each partner and continue to evolve the partnership, we’ll be able to share knowledge in an even more integrated way.”     
As part of her trip, Cook spent about five months at the Tsukuba Space Center, approximately one hour north of Tokyo, working under JAXA Vice President and Director General for Human Spaceflight Technology Hiroshi Sasaki. She partnered with JAXA subject matter experts to host themed discussions for the directorate team, sharing and discussing ideas about the U.S and Japanese approaches, including future partnering opportunities.  
Her research themes included: NASA’s Moon to Mars objectives; commercial capabilities such as commercial low Earth orbit development; lunar surface transportation such as rovers and utility vehicles; lunar in-situ resource utilization, human landing systems, and science priorities to enable human exploration to the Moon and beyond. This required intense language training – before and throughout Cook’s trip – so she could understand, write, and speak Japanese with an audience ranging from students and coworkers to Japanese dignitaries, such as the Minister of Foreign Affairs Yoshimasa Hayashi and JAXA President Dr. Hiroshi Yamakawa.          

“I think a lot of growth came out of challenging myself – both in learning more about NASA and U.S. agencies collaborating on space and learning about it deeply enough to explain it and communicate it in a succinct way that could make it through translation,” Cook said.
Cook was just the third NASA person selected in the nearly 30-year history of the Mansfield Fellowship, a program named for former U.S. Senate Majority Leader and U.S. Ambassador to Japan Mike Mansfield.
Invited to lecture at several university graduate programs, Cook was inspired by students’ interest in NASA’s Moon to Mars plans, as well as their knowledge and in-depth questions. Her interaction with Japanese colleagues was equally positive, as they welcomed her to their group with open arms.
During the Artemis I launch in November 2022, Cook invited members of the JAXA human spaceflight team to a launch viewing party. Aware that she was disappointed about missing the launch live, they blew her away by showing up in great numbers, doling out high-fives and ecstatically cheering on the launch in front of a big screen TV at the Tsukuba Space Center.

“One thing that leaves an impression on you from Japan is their hospitality. The word for it is ‘omotenashi,’” Cook said. “It’s more than just a word; it’s culturally ingrained in how they interact with each other and the level of consideration that they put into everything they do.”
Enriched technically, culturally, and spiritually from her transformative experience in Japan, Cook returned to NASA “forever changed.” She learned a great deal about science, life, and her own agency. She even picked up a saying that she incorporated into her daily work routine.           “In Japan, at the end of every day, you say, ‘Otsukaresama deshita,’ which means, ‘Thank you for your hard work.’ When you pass a coworker in the hall and when you toast in celebration with coworkers, you say ‘Otsukaresama des,’ ” Cook said. “Even still, when I meet with my Japanese counterparts, I will often say it. And it reminds me to carry that appreciation of my team throughout my day back at NASA. The simple phrase bonds us all together across the international Artemis work we do.”

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NASA’s Modern History Makers: Maricela Lizcano

Source: NASA

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Maricela Lizcano never dreamed of working for NASA.
In fact, she wasn’t planning on furthering her education until she had a revelation in her late twenties.
“I was watching one of those forensic shows, and I loved the way they caught the criminals with science,” said Lizcano, research materials engineer at NASA’s Glenn Research Center in Cleveland. “I wanted to be able to do that. I realized I should be studying science and engineering.”
It took Lizcano about ten years to prepare mentally and financially to go back to school, and during that time, she received some startling news.
“I found out that I was losing my sight, and it was very scary,” Lizcano said. “I think that was one of the things that tossed me off the rails. I had so many questions: ‘What am I going to do? How am I going to work or go to school? How quickly am I losing my vision?’ There were no answers.”
Lizcano was diagnosed with Stargardt disease, a rare genetic eye disease that occurs when fatty material builds up on the macula — the small part of the retina needed for sharp, central vision.
“My Stargardt disease started on the outer edges of my macula, and over time, it grew to the center,” Lizcano said. “By the time I was 45 years old, it had pretty much taken all of my central vision, and now I rely on my peripheral vision to see.”
Eventually, Lizcano viewed this as another obstacle to hurdle, no different from any others she had experienced in her life. She attended the University of Texas–Pan American, now called the University of Texas Rio Grande Valley. She started during a second summer session, easing her way to full-time attendance while also holding a job.
Because of her new disability, she couldn’t see what professors were writing on the board. She taught herself to listen intently to the topics being discussed in the lecture, then after class, she read the textbook and rewrote the lecture notes using special magnification tools.
“It took that much longer, but you learn to adapt,” Lizcano said. “There are certain skills you develop because of the changes you have to make when you have a disability. I learned that I really have to listen.”
After five years, Lizcano completed her mechanical engineering degree. She didn’t get a job right away after graduation, so she continued her education and earned master’s and doctorate degrees.
“I can’t just look at my disability as some great thing that I really had to overcome,” Lizcano said. “I think a lot of people overcome many obstacles because we are driven by the desire to achieve things. You don’t see the challenges as challenges, you just see them as something to conquer to get to your goal.”
In 2010, former President Barack Obama signed an executive order to increase federal employment of individuals with disabilities. The executive order directed executive departments and agencies to improve their efforts to employ workers with disabilities through increased recruitment, hiring, and retention of these individuals.
“Through the Workforce Recruitment Program, I had the opportunity to interview with representatives from federal agencies,” Lizcano said. “I heard nothing for a long time, but then suddenly I got an email from NASA Glenn asking if I’d present my research.”
She accepted a job as a research materials engineer and now leads a team working on high-voltage materials for electrified aircraft. She collaborates with various universities to develop composite insulation materials and lightweight conductors.
Even now working at NASA, Lizcano faces challenges that she finds ways to overcome. She depends on her fellow colleagues to carpool to work and accessibility tools — like the magnifier app — to use her computer.
“Understanding my needs allowed me to get over the fact that I lost my independence,” Lizcano said. “It was a mind shift to be all right with asking for help.”
Lizcano’s recommends a science, technology, engineering, and mathematics career to anyone looking for a challenge or excitement.
“We’re always solving problems. If you’re one of those people who really wants to make a difference in the world, STEM careers are a good place to start,” Lizcano said. “Any challenge that you may have in result of a disability is no different than the challenge you’re trying to solve, and it will give you the motivation and unique skills you need to be successful.”
NASA is in a Golden Era of aeronautics and space exploration. In partnership with commercial and private businesses, NASA is currently making history with significant missions such as Artemis, Quesst, and electrified aviation. The NASA’s Modern History Makers series highlights members of NASA Glenn’s workforce who make these remarkable missions possible.
Jacqueline MinerdNASA’s Glenn Research Center

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Jennifer L. Turner

Source: NASA

“I can almost directly trace my entire career back to [my extracurriculars] in high school and a mentor I had. My first foray into engineering was this high school program called the Robotics Science Academy. It was basically my high school’s attempt to put together a curriculum that was designed specifically to prepare students for an engineering track in college. But since it was the first year of trying this program, there were only about eight of us. The high school teacher leading the robotics track, Mr. Donelson, was always [encouraging] about trying new things and getting out of our comfort zone. And I think that always really helped me.”
“So I owe a lot to him, for sure. He would stay after school with us and walk us through our assignments, and ended up encouraging us to enter an underwater robotics competition. Because we were fairly landlocked – which is obviously not great for underwater robotics that are meant for deep sea missions — we sort of lucked our way into the international competition.”
“Even so, we ended up winning a “bang for your buck” award based on the amount of tasks we completed in the mission and the cost of our robot, because the cost was very, very low. It was just this Frankenstein monstrosity of PVC pipes and messy high schooler soldering and wiring. But no matter how it looked, I was lucky to have teachers like Mr. Donelson to push all of us forward.”
Image Credit: NASA / James Blair
Check out some of our other Faces of NASA.