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By NASA
The NASA Ames Science Directorate recognizes the outstanding contributions of (pictured left to right) Dennis Leveson-Gower and Laura Iraci. Their commitment to the NASA mission represents the entrepreneurial spirit, technical expertise, and collaborative disposition needed to explore this world and beyond.
Space Biosciences Star: Dennis Leveson-Gower
Dennis Leveson-Gower, Assistant Branch Chief of Bioengineering, has contributed to numerous projects and payloads within the Space Biosciences Division since 2012. He is recognized for exceptional leadership, operational excellence, and strategic collaboration that have advanced the Bioengineering Branch and strengthened partnerships with commercial spaceflight organizations.
Earth Science Star: Laura Iraci
Laura Iraci is a Senior Research Scientist in the Atmospheric Science Branch. She is recognized for her outstanding scientific leadership and her impactful role as a mentor. As head of the Trace Gas Group, Laura develops and deploys custom atmospheric sampling and remote sensing instrumentation for critical NASA suborbital and spaceflight missions, including major airborne science field campaigns. She is equally dedicated to mentoring early-career researchers, with many advancing into highly productive staff positions at NASA.
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By NASA
NASA astronauts Anne McClain (bottom) and Nichole Ayers (top), both Expedition 73 Flight Engineers, checkout spacesuit hardware in the Quest airlock and review procedures for a May 1 spacewalk. Credit: NASA Johnson Space Center NASA astronauts Nichole Ayers and Anne McClain will answer prerecorded questions about science, technology, engineering, and mathematics from students in Bethpage, New York. The two astronauts are currently aboard the International Space Station.
Watch the 20-minute Earth-to-space call at 12:45 p.m. EDT on Friday, May 16, on the NASA STEM YouTube Channel.
Media interested in covering the event must RSVP no later than 5 p.m., Tuesday, May 13, by contacting Francesca Russell at: frussell@syntaxny.com or 516-644-4330.
The event is hosted by Central Boulevard Elementary School. As part of the call, students will highlight their year-long reading program, “Reading is a Blast-Exploring a Universe of Stories.”
For more than 24 years, astronauts have continuously lived and worked aboard the space station, testing technologies, performing science, and developing skills needed to explore farther from Earth. Astronauts aboard the orbiting laboratory communicate with NASA’s Mission Control Center in Houston 24 hours a day through SCaN’s (Space Communications and Navigation) Near Space Network.
Important research and technology investigations taking place aboard the space station benefit people on Earth and lays the groundwork for other agency missions. As part of NASA’s Artemis campaign, the agency will send astronauts to the Moon to prepare for future human exploration of Mars; inspiring Artemis Generation explorers and ensuring the United States continues to lead in space exploration and discovery.
See videos of astronauts aboard the space station at:
https://www.nasa.gov/stemonstation
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Gerelle Dodson
Headquarters, Washington
202-358-1600
gerelle.q.dodson@nasa.gov
Sandra Jones
Johnson Space Center, Houston
281-483-5111
sandra.p.jones@nasa.gov
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Last Updated May 09, 2025 LocationNASA Headquarters Related Terms
NASA Headquarters International Space Station (ISS) Johnson Space Center View the full article
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By NASA
Expedition 72 Flight Engineers Takuya Onishi from JAXA (Japan Aerospace Exploration Agency) and NASA astronauts Anne McClain, Nichole Ayers, and Don Pettit pose while inside the vestibule between the International Space Station’s Unity module and the Cygnus space freighter.NASA NASA astronaut Nichole Ayers and JAXA (Japan Aerospace Exploration Agency) astronaut Takuya Onishi will answer prerecorded questions about science, technology, engineering, and mathematics from students in Mansfield, Texas, while aboard the International Space Station.
The 20-minute space-to-Earth call will take place at 10:40 a.m. EDT on Monday, May 5, and can be watched on the NASA STEM YouTube Channel.
Media interested in covering the event must RSVP no later than 5 p.m., Friday, May 2 by contacting Laura Jobe at laurajobe@misdmail.org or 817-299-6300.
The event, hosted by Mansfield Independent School District, also will have students present from Brenda Norwood Elementary, Alma Martinez Intermediate, Charlene McKinzey Middle, Jerry Knight and Frontier STEM Academies in Mansfield. This opportunity will allow the students to relate what they have learned about space travel to personal experiences.
For more than 24 years, astronauts have continuously lived and worked aboard the space station, testing technologies, performing science, and developing skills needed to explore farther from Earth. Astronauts aboard the orbiting laboratory communicate with NASA’s Mission Control Center in Houston 24 hours a day through SCaN’s (Space Communications and Navigation) Near Space Network.
Important research and technology investigations taking place aboard the space station benefit people on Earth and lays the groundwork for other agency missions. As part of NASA’s Artemis campaign, the agency will send astronauts to the Moon to prepare for future human exploration of Mars; inspiring Artemis Generation explorers and ensuring the United States continues to lead in space exploration and discovery.
See videos of astronauts aboard the space station at:
https://www.nasa.gov/stemonstation
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Gerelle Dodson
Headquarters, Washington
202-358-1600
gerelle.q.dodson@nasa.gov
Sandra Jones
Johnson Space Center, Houston
281-483-5111
sandra.p.jones@nasa.gov
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Last Updated Apr 30, 2025 LocationNASA Headquarters Related Terms
Humans in Space International Space Station (ISS) Johnson Space Center NASA Headquarters View the full article
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By NASA
NASA astronaut and Expedition 72 Flight Engineer Don Pettit sets up camera hardware to photograph research activities inside the International Space Station’s Kibo laboratory module on March 15, 2025.Credit: NASA Media are invited to a news conference at 2 p.m. EDT Monday, April 28, at NASA’s Johnson Space Center in Houston where astronaut Don Pettit will share details of his recent mission aboard the International Space Station.
The news conference will stream live on NASA’s website. Learn how to stream NASA content through a variety of platforms.
To participate in person, U.S. media must contact the NASA Johnson newsroom no later than 5 p.m. Thursday, April 24, at 281-483-5111 or jsccommu@mail.nasa.gov. Media wishing to participate by phone must contact the newsroom no later than two hours before the start of the event. To ask questions by phone, media must dial into the news conference no later than 10 minutes prior to the start of the call. NASA’s media accreditation policy is available online.
Questions also may be submitted on social media during the news conference by using #AskNASA. Following the news conference, NASA will host a live question and answer session with Pettit on the agency’s Instagram. For more information, visit @NASA on social media.
Pettit returned to Earth on April 19 (April 20, Kazakhstan time), along with Roscosmos cosmonauts Alexey Ovchinin and Ivan Vagner. Pettit celebrated his 70th birthday on April 20. He spent 220 days in space as an Expedition 71/72 flight engineer, bringing his career total to 590 days in space during four spaceflights. Pettit and his crewmates completed 3,520 orbits of Earth over the course of their 93-million-mile journey. They also saw the arrival of six visiting spacecraft and the departure of seven.
During his time on orbit, Pettit conducted hundreds of hours of scientific investigations, including research to enhance on-orbit metal 3D printing capabilities, advance water sanitization technologies, explore plant growth under varying water conditions, and investigate fire behavior in microgravity, all contributing to future space missions.
He also spent time aboard the space station sharing his photography, often posting images to his X account. He took more than 670,000 photos during his stay.
Learn more about International Space Station research and operations at:
http://www.nasa.gov/station
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Joshua Finch / Claire O’Shea
Headquarters, Washington
202-358-1100
joshua.a.finch@nasa.gov / claire.a.o’shea@nasa.gov
Chelsey Ballarte
Johnson Space Center, Houston
281-483-5111
chelsey.n.ballarte@nasa.gov
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Last Updated Apr 23, 2025 LocationNASA Headquarters Related Terms
International Space Station (ISS) Astronauts Humans in Space ISS Research Johnson Space Center View the full article
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By NASA
2 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
Astronauts Victor Glover and Christina Koch tour the Arc Jet Facility at NASA’s Ames Research Center, learning more about the testing equipment’s capabilities to analyze thermal protection systems from George Raiche, thermophysics facilities branch chief at Ames.NASA/Donald Richey As NASA prepares to send astronauts to the Moon aboard the Orion spacecraft, research, testing, and development at NASA’s Ames Research Center in California’s Silicon Valley has played a critical role.
Recently, Ames welcomed Artemis II astronauts Christina Koch and Victor Glover and Orion leaders Debbie Korth, deputy program manager, and Luis Saucedo, deputy crew and service module manager, to tour Ames facilities that support the Orion Program and celebrate the achievements of employees.
The group started their visit at the Arc Jet Complex, where researchers use extremely hot, high-speed gases to simulate the intense heat of atmospheric reentry before visiting the Sensors & Thermal Protection Systems Advanced Research Laboratories. The team works to develop sensors and flight instrumentation that measure heat shield response throughout a mission.
These systems were used to develop and test Orion’s thermal protection system to ensure the safety of astronauts during future missions. After the successful return of the Artemis I Orion spacecraft, Ames research was essential when analyzing unexpected charring loss on the heat shield.
Debbie Korth, Orion deputy program manager, presents awards to the Ames workforce at the Orion Circle of Excellence Awards Ceremony, while astronauts Christina Koch and Victor Glover look on.NASA/Donald Richey The visit culminated in an award ceremony to honor employees with outstanding performance and a legacy of service to the Orion Program. Thirty-two employees were honored for their individual or team contributions.
“The Ames workforce has played an important role in developing, testing, and validating the Orion spacecraft’s thermal protection system as well as supporting its software and guidance, navigation, and control,” said Eugene Tu, NASA Ames center director. “I’m pleased to see their contributions recognized and celebrated by program leadership and two of the astronauts whose safety and success were in mind when ensuring these systems are safe, reliable, and the highest quality possible.”
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Last Updated Apr 02, 2025 Related Terms
Ames Research Center Artemis Christina H. Koch Exploration Systems Development Mission Directorate General Orion Program Victor J. Glover Explore More
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