NASA booths are seen at the American Geophysical Union (AGU) annual meeting, Tuesday, Dec. 11, 2018 at the Washington Convention Center in Washington, DC. Photo Credit: (NASA/Aubrey Gemignani)

Talks were given at the NASA Hyperwall, Tuesday, December 11, 2018 at the Washington Convention Center in Washington as part of the American Geophysical Union (AGU) annual meeting. Photo Credit: (NASA/Aubrey Gemignani)

NASA Administrator Jim Bridenstine speaks at the American Geophysical Union (AGU) meeting, Tuesday, Dec. 11, 2018 at the Washington Convention Center in Washington. Photo Credit: (NASA/Aubrey Gemignani)

NASA booths are seen at the American Geophysical Union (AGU) annual meeting, Tuesday, Dec. 11, 2018 at the Washington Convention Center in Washington, DC. Photo Credit: (NASA/Aubrey Gemignani)

NASA booths are seen at the American Geophysical Union (AGU) annual meeting, Tuesday, Dec. 11, 2018 at the Washington Convention Center in Washington, DC. Photo Credit: (NASA/Aubrey Gemignani)

NASA Administrator Jim Bridenstine visits a NASA booth at the American Geophysical Union (AGU) meeting, Tuesday, Dec. 11, 2018 at the Washington Convention Center in Washington. Photo Credit: (NASA/Aubrey Gemignani)

NASA booths are seen at the American Geophysical Union (AGU) annual meeting, Tuesday, Dec. 11, 2018 at the Washington Convention Center in Washington, DC. Photo Credit: (NASA/Aubrey Gemignani)

NASA booths are seen at the American Geophysical Union (AGU) annual meeting, Tuesday, Dec. 11, 2018 at the Washington Convention Center in Washington, DC. Photo Credit: (NASA/Aubrey Gemignani)

NASA booths are seen at the American Geophysical Union (AGU) annual meeting, Tuesday, Dec. 11, 2018 at the Washington Convention Center in Washington, DC. Photo Credit: (NASA/Aubrey Gemignani)

NASA booths are seen at the American Geophysical Union (AGU) annual meeting, Tuesday, Dec. 11, 2018 at the Washington Convention Center in Washington, DC. Photo Credit: (NASA/Aubrey Gemignani)

NASA Administrator Jim Bridenstine visits a NASA booth at the American Geophysical Union (AGU) meeting, Tuesday, Dec. 11, 2018 at the Washington Convention Center in Washington. Photo Credit: (NASA/Aubrey Gemignani)

NASA booths are seen at the American Geophysical Union (AGU) annual meeting, Tuesday, Dec. 11, 2018 at the Washington Convention Center in Washington, DC. Photo Credit: (NASA/Aubrey Gemignani)

NASA Administrator Jim Bridenstine visits a NASA booth at the American Geophysical Union (AGU) meeting, Tuesday, Dec. 11, 2018 at the Washington Convention Center in Washington. Photo Credit: (NASA/Aubrey Gemignani)

NASA booths are seen at the American Geophysical Union (AGU) annual meeting, Tuesday, Dec. 11, 2018 at the Washington Convention Center in Washington, DC. Photo Credit: (NASA/Aubrey Gemignani)

NASA booths are seen at the American Geophysical Union (AGU) annual meeting, Tuesday, Dec. 11, 2018 at the Washington Convention Center in Washington, DC. Photo Credit: (NASA/Aubrey Gemignani)

NASA booths are seen at the American Geophysical Union (AGU) annual meeting, Tuesday, Dec. 11, 2018 at the Washington Convention Center in Washington, DC. Photo Credit: (NASA/Aubrey Gemignani)

NASA booths are seen at the American Geophysical Union (AGU) annual meeting, Tuesday, Dec. 11, 2018 at the Washington Convention Center in Washington, DC. Photo Credit: (NASA/Aubrey Gemignani)

Christine McEntee, American Geophysical Union (AGU) Executive Director and Chief Executive Officer, introduces NASA Administrator Jim Bridenstine at the annual AGU meeting, Tuesday, Dec. 11, 2018 at the Washington Convention Center in Washington. Photo Credit: (NASA/Aubrey Gemignani)

Talks were given at the NASA Hyperwall, Tuesday, December 11, 2018 at the Washington Convention Center in Washington as part of the American Geophysical Union (AGU) annual meeting. Photo Credit: (NASA/Aubrey Gemignani)

Christine McEntee, American Geophysical Union (AGU) Executive Director and Chief Executive Officer, second from left; NASA Administrator Jim Bridenstine, third from left; Thomas Zurbuchen, associate administrator, Science Mission Directorate, NASA, fourth from left; and Dennis Andrucyk, deputy associate administrator, Science Mission Directorate, NASA, right, pose for a photo with winners of the AGU Data Visualization Storytelling Competition at the annual AGU meeting, Tuesday, Dec. 11, 2018 at the Washington Convention Center in Washington. Photo Credit: (NASA/Aubrey Gemignani)

The back wall of the NASA exhibit is seen during the 70th International Astronautical Congress, Friday, Oct. 25, 2019, at the Walter E. Washington Convention Center in Washington. Photo credit: (NASA/Aubrey Gemignani)

Broadway performers are seen on stage during the opening ceremony of the 70th International Astronautical Congress, Monday, Oct. 21, 2019 at the Walter E. Washington Convention Center in Washington. Photo Credit: (NASA/Joel Kowsky)

Attendees are seen by the NASA exhibit at the 70th International Astronautical Congress, Friday, Oct. 25, 2019, at the Walter E. Washington Convention Center in Washington. Photo Credit: (NASA/Joel Kowsky)

NASA's Kristen Erickson speaks about educational science resources during the 70th International Astronautical Congress, Friday, Oct. 25, 2019, at the Walter E. Washington Convention Center in Washington. Photo credit: (NASA/Aubrey Gemignani)

A model of Orion is seen at the NASA exhibit during the 70th International Astronautical Congress, Friday, Oct. 25, 2019, at the Walter E. Washington Convention Center in Washington. Photo credit: (NASA/Aubrey Gemignani)

Visitors to the NASA exhibit at the 70th International Astronautical Congress view a cutaway model of the agency’s Orion spacecraft, Friday, Oct. 25, 2019, at the Walter E. Washington Convention Center in Washington. Photo Credit: (NASA/Joel Kowsky)

NASA's Kristen Erickson speaks about educational science resources during the 70th International Astronautical Congress, Friday, Oct. 25, 2019, at the Walter E. Washington Convention Center in Washington. Photo credit: (NASA/Aubrey Gemignani)

A model of the Gateway is seen at the NASA exhibit during the 70th International Astronautical Congress, Friday, Oct. 25, 2019, at the Walter E. Washington Convention Center in Washington. Photo credit: (NASA/Aubrey Gemignani)

Attendees pick up NASA bags at the agency’s exhibit at the 70th International Astronautical Congress, Friday, Oct. 25, 2019, at the Walter E. Washington Convention Center in Washington. Photo Credit: (NASA/Joel Kowsky)

A model of NASA’s Space Launch System rocket is seen in the agency’s exhibit at the 70th International Astronautical Congress, Friday, Oct. 25, 2019 at the Walter E. Washington Convention Center in Washington. Photo Credit: (NASA/Joel Kowsky)

A model of the inside of Orion is seen at the NASA exhibit during the 70th International Astronautical Congress, Friday, Oct. 25, 2019, at the Walter E. Washington Convention Center in Washington. Photo credit: (NASA/Aubrey Gemignani)

Visitors to the NASA exhibit at the 70th International Astronautical Congress take a picture in a mockup of a space suit, Friday, Oct. 25, 2019, at the Walter E. Washington Convention Center in Washington. Photo Credit: (NASA/Joel Kowsky)

David Folta, a Flight Dynamics Engineer at NASA’s Goddard Space Flight Center, is seen during a keynote titled “Astrodynamics of Lunar and Cis-Lunar Missions” at the 70th International Astronautical Congress, Wednesday, Oct. 23, 2019 at the Walter E. Washington Convention Center in Washington. Photo Credit: (NASA/Aubrey Gemignani)

David Folta, a Flight Dynamics Engineer at NASA’s Goddard Space Flight Center, is seen during a keynote titled “Astrodynamics of Lunar and Cis-Lunar Missions” at the 70th International Astronautical Congress, Wednesday, Oct. 23, 2019 at the Walter E. Washington Convention Center in Washington. Photo Credit: (NASA/Aubrey Gemignani)

David Folta, a Flight Dynamics Engineer at NASA’s Goddard Space Flight Center, is seen during a keynote titled “Astrodynamics of Lunar and Cis-Lunar Missions” at the 70th International Astronautical Congress, Wednesday, Oct. 23, 2019 at the Walter E. Washington Convention Center in Washington. Photo Credit: (NASA/Aubrey Gemignani)

Randy Babbitt, Administrator of the Federal Aviation Administration gives opening remarks at the 14th Annual FAA Commercial Space Transportation Conference at the Washington Convention Center on Wednesday, Feb. 9, 2001. Photo Credit: (NASA/Carla Cioffi)

NASA Administrator Charles Bolden speaks at the 14th Annual Federal Aviation Administration (FAA) Commercial Space Transport Conference at the Washington Convention Center on Wednesday, Feb. 9, 2001. Photo Credit: (NASA/Carla Cioffi)

NASA Administrator Charles Bolden speaks at the 14th Annual Federal Aviation Administration (FAA) Commercial Space Transport Conference at the Washington Convention Center on Wednesday, Feb. 9, 2001. Photo Credit: (NASA/Carla Cioffi)

A baby in a flight suit sits in front of the Artemis sign at the NASA exhibit during the 70th International Astronautical Congress, Friday, Oct. 25, 2019, at the Walter E. Washington Convention Center in Washington. Photo credit: (NASA/Aubrey Gemignani)

Former NASA Administrator and astronaut, Charlie Bolden speaks during an astronaut panel discussion at the 70th International Astronautical Congress, Friday, Oct. 25, 2019, at the Walter E. Washington Convention Center in Washington. Photo credit: (NASA/Aubrey Gemignani)

Brad Bailey, program scientist with NASA's Lunar Discovery and Exploration Program is seen during a keynote titled “An Overview of NASA’s Lunar Science Exploration Plans for Artemis” at the 70th International Astronautical Congress, Tuesday, Oct. 22, 2019 at the Walter E. Washington Convention Center in Washington. Photo Credit: (NASA/Joel Kowsky)

Andrew Klesh, a Mission Architect at NASA’s Jet Propulsion Laboratory is seen during a keynote titled “MarCO: Flight Results from the First Interplanetary CubeSat Mission” at the 70th International Astronautical Congress, Friday, Oct. 25, 2019, at the Walter E. Washington Convention Center in Washington. Photo Credit: (NASA/Joel Kowsky)

Lindsay Aitchison, Deputy Project Manager for the Advanced Space Suit Project at NASA speaks to visitors to NASA’s exhibit at the 70th International Astronautical Congress, Friday, Oct. 25, 2019 at the Walter E. Washington Convention Center in Washington. Photo Credit: (NASA/Joel Kowsky)

Roscosmos cosmonaut and executive director for piloted spaceflights, Sergey Krikalev, speaks during an astronaut panel discussion at the 70th International Astronautical Congress, Friday, Oct. 25, 2019, at the Walter E. Washington Convention Center in Washington. Photo credit: (NASA/Aubrey Gemignani)

Buzz Aldrin, Apollo 11 lunar module pilot, salutes as he is recognized by Vice President Mike Pence during the opening ceremony of the 70th International Astronautical Congress, Monday, Oct. 21, 2019 at the Walter E. Washington Convention Center in Washington. Photo Credit: (NASA/Bill Ingalls)

Former NASA astronaut Mary Cleave speaks during an astronaut panel discussion at the 70th International Astronautical Congress, Friday, Oct. 25, 2019, at the Walter E. Washington Convention Center in Washington. Photo credit: (NASA/Aubrey Gemignani)

Audience members participate in a special session titled ”The Immortal Spaceship: A Discussion on the Use Cases and Value of Persistent Platforms” at the 70th International Astronautical Congress, Thursday, Oct. 24, 2019, at the Walter E. Washington Convention Center in Washington. Photo Credit: (NASA/Joel Kowsky)

A student asks NASA Administrator Jim Bridenstine a question during a Heads of Agency interactive session at the 70th International Astronautical Congress, Monday, Oct. 21, 2019 at the Walter E. Washington Convention Center in Washington. Photo credit: (NASA/Aubrey Gemignani)

Bill Nye, Chief Executive Officer, The Planetary Society, speaks during a session titled, “Europa Clipper: Making a Mission to Understand Our Place in the Universe” at the 70th International Astronautical Congress, Wednesday, Oct. 23, 2019 at the Walter E. Washington Convention Center in Washington. Photo credit: (NASA/Aubrey Gemignani)

Simonetta Di Pippo, Director of the United Nations Office for Outer Space Affairs, is seen during a special session titled “Planetary Protection for the Future: Science, Exploration, and Commerce” at the 70th International Astronautical Congress, Thursday, Oct. 24, 2019, at the Walter E. Washington Convention Center in Washington. Photo Credit: (NASA/Joel Kowsky)

NASA Chief Scientist Jim Green is seen during a special session titled “Planetary Protection for the Future: Science, Exploration, and Commerce” at the 70th International Astronautical Congress, Thursday, Oct. 24, 2019 at the Walter E. Washington Convention Center in Washington. Photo Credit: (NASA/Joel Kowsky)

Thomas Magner, Manager, Applied Physics Laboratory (APL), speaks during a session titled, “Europa Clipper: Making a Mission to Understand Our Place in the Universe” at the 70th International Astronautical Congress, Wednesday, Oct. 23, 2019 at the Walter E. Washington Convention Center in Washington. Photo credit: (NASA/Aubrey Gemignani)

Lisa Pratt, NASA's Planetary Protection Officer, answers a question from the audience during a special session titled “Planetary Protection for the Future: Science, Exploration, and Commerce” at the 70th International Astronautical Congress, Thursday, Oct. 24, 2019, at the Walter E. Washington Convention Center in Washington. Photo Credit: (NASA/Joel Kowsky)

Philippe Étienne, French Ambassador to the U.S., tries virtual reality viewers at the NASA exhibit during the 70th International Astronautical Congress, Wednesday, Oct. 23, 2019, at the Walter E. Washington Convention Center in Washington. Photo credit: (NASA/Aubrey Gemignani)

Lisa Pratt, NASA's Planetary Protection Officer, answers a question from the audience during a special session titled “Planetary Protection for the Future: Science, Exploration, and Commerce” at the 70th International Astronautical Congress, Thursday, Oct. 24, 2019, at the Walter E. Washington Convention Center in Washington. Photo Credit: (NASA/Joel Kowsky)

Audience members participate in a special session titled ”The Immortal Spaceship: A Discussion on the Use Cases and Value of Persistent Platforms” at the 70th International Astronautical Congress, Thursday, Oct. 24, 2019, at the Walter E. Washington Convention Center in Washington. Photo Credit: (NASA/Joel Kowsky)

Andrew Klesh, a Mission Architect at NASA’s Jet Propulsion Laboratory is seen during a keynote titled “MarCO: Flight Results from the First Interplanetary CubeSat Mission” at the 70th International Astronautical Congress, Friday, Oct. 25, 2019, at the Walter E. Washington Convention Center in Washington. Photo Credit: (NASA/Joel Kowsky)

Philippe Étienne, French Ambassador to the U.S. speaks to Joseph Williams about virtual reality viewers at the NASA exhibit during the 70th International Astronautical Congress, Wednesday, Oct. 23, 2019, at the Walter E. Washington Convention Center in Washington. Photo credit: (NASA/Aubrey Gemignani)

NASA astronaut Doug Wheelock, speaks about his time in space at a STEM day session with students during the 70th International Astronautical Congress, Wednesday, Oct. 23, 2019 at the Walter E. Washington Convention Center in Washington. Photo credit: (NASA/Aubrey Gemignani)

ESA (European Space Agency) astronaut, André Kuipers, speaks during an astronaut panel discussion at the 70th International Astronautical Congress, Friday, Oct. 25, 2019, at the Walter E. Washington Convention Center in Washington. Photo credit: (NASA/Aubrey Gemignani)

Former NASA astronaut Janet Kavandi speaks about her time in space at a STEM day session with students during the 70th International Astronautical Congress, Wednesday, Oct. 23, 2019 at the Walter E. Washington Convention Center in Washington. Photo credit: (NASA/Aubrey Gemignani)

NASA's Kristen Erickson holds up a braille image of the NASA logo and the moon during a talk about educational science resources at the 70th International Astronautical Congress, Friday, Oct. 25, 2019, at the Walter E. Washington Convention Center in Washington. Photo credit: (NASA/Aubrey Gemignani)

European astronaut and professor, Institute of Space Systems, Reinhold Ewald, speaks during an astronaut panel discussion at the 70th International Astronautical Congress, Friday, Oct. 25, 2019, at the Walter E. Washington Convention Center in Washington. Photo credit: (NASA/Aubrey Gemignani)

Former NASA astronaut Bob Curbeam spoke about his time in space at a STEM day session with students during the 70th International Astronautical Congress, Wednesday, Oct. 23, 2019 at the Walter E. Washington Convention Center in Washington. Photo credit: (NASA/Aubrey Gemignani)

Audience members participate in a special session titled ”The Immortal Spaceship: A Discussion on the Use Cases and Value of Persistent Platforms” at the 70th International Astronautical Congress, Thursday, Oct. 24, 2019, at the Walter E. Washington Convention Center in Washington. Photo Credit: (NASA/Joel Kowsky)

An attendee takes a selfie with an RS-25 engine, the same type that will power NASA's Space Launch System, while visiting the NASA exhibit space at the 70th International Astronautical Congress, Tuesday, Oct. 22, 2019 at the Walter E. Washington Convention Center in Washington. Photo Credit: (NASA/Joel Kowsky)

Brad Bailey, program scientist with NASA's Lunar Discovery and Exploration Program is seen during a keynote titled “An Overview of NASA’s Lunar Science Exploration Plans for Artemis” at the 70th International Astronautical Congress, Tuesday, Oct. 22, 2019 at the Walter E. Washington Convention Center in Washington. Photo Credit: (NASA/Joel Kowsky)

Former NASA Administrator and astronaut, Charlie Bolden speaks during an astronaut panel discussion at the 70th International Astronautical Congress, Friday, Oct. 25, 2019, at the Walter E. Washington Convention Center in Washington. Photo credit: (NASA/Aubrey Gemignani)

Panelists are seen during a discussion titled “ISS-Moon-Mars: Using Spaceflight Platforms to Study and Simulate Future Missions” during the the 70th International Astronautical Congress, Monday, Oct. 21, 2019 at the Walter E. Washington Convention Center in Washington. Photo Credit: (NASA/Joel Kowsky)

Bill Nye, Chief Executive Officer, The Planetary Society, speaks during a session titled, “Europa Clipper: Making a Mission to Understand Our Place in the Universe” at the 70th International Astronautical Congress, Wednesday, Oct. 23, 2019 at the Walter E. Washington Convention Center in Washington. Photo credit: (NASA/Aubrey Gemignani)

Bill Nye, Chief Executive Officer, The Planetary Society, speaks during a session titled, “Europa Clipper: Making a Mission to Understand Our Place in the Universe” at the 70th International Astronautical Congress, Wednesday, Oct. 23, 2019 at the Walter E. Washington Convention Center in Washington. Photo credit: (NASA/Aubrey Gemignani)

An RS-25 engine, the same type that will power NASA’s Space Launch System, is seen in the agency’s exhibit at the 70th International Astronautical Congress, Friday, Oct. 25, 2019, at the Walter E. Washington Convention Center in Washington. Photo Credit: (NASA/Joel Kowsky)

Photos of people who have visited the NASA exhibit are placed on the Artemis sign during the 70th International Astronautical Congress, Wednesday, Oct. 23, 2019 at the Walter E. Washington Convention Center in Washington. Photo credit: (NASA/Aubrey Gemignani)

A model of a lunar lander is seen at the NASA exhibit during the 70th International Astronautical Congress, Friday, Oct. 25, 2019, at the Walter E. Washington Convention Center in Washington. Photo credit: (NASA/Aubrey Gemignani)

A model of is the Space Launch System (SLS) is seen at the NASA exhibit during the 70th International Astronautical Congress, Friday, Oct. 25, 2019, at the Walter E. Washington Convention Center in Washington. Photo credit: (NASA/Aubrey Gemignani)

The NASA social group poses for a photo with the Artemis sign during the 70th International Astronautical Congress, Friday, Oct. 25, 2019, at the Walter E. Washington Convention Center in Washington. Photo credit: (NASA/Aubrey Gemignani)

A model of the Astrobee robot is seen at the NASA exhibit during the 70th International Astronautical Congress, Friday, Oct. 25, 2019, at the Walter E. Washington Convention Center in Washington. Photo credit: (NASA/Aubrey Gemignani)

John Logsdon, Apollo historian and Professor Emeritus at George Washington University, speaks about the history of the Apollo program during the International Astronautical Federation World Space Award highlight lecture at the 70th International Astronautical Congress, Thursday, Oct. 24, 2019, at the Walter E. Washington Convention Center in Washington. The 2019 World Space Award was presented to the crew of Apollo 11. Photo Credit: (NASA/Joel Kowsky)

John Logsdon, Apollo historian and Professor Emeritus at George Washington University, speaks about the history of the Apollo program during the International Astronautical Federation World Space Award highlight lecture at the 70th International Astronautical Congress, Thursday, Oct. 24, 2019, at the Walter E. Washington Convention Center in Washington. The 2019 World Space Award was presented to the crew of Apollo 11. Photo Credit: (NASA/Joel Kowsky)

Astronaut Rex Walheim spoke at the USA Science and Engineering Festival on April 25, 2014. The festival was open to the public on April 26 and 27, 2014 and was held at the Washington Convention Center in Washington, DC. Photo Credit: (NASA/Aubrey Gemignani)

Astronaut Rex Walheim spoke at the USA Science and Engineering Festival on April 25, 2014 at the NASA Stage. The festival was open to the public on April 26 and 27, 2014 and was held at the Washington Convention Center in Washington, DC. Photo Credit: (NASA/Aubrey Gemignani)

Astronaut Rex Walheim spoke at the USA Science and Engineering Festival on April 25, 2014 at the NASA Stage. The festival was open to the public on April 26 and 27, 2014 and was held at the Washington Convention Center in Washington, DC. Photo Credit: (NASA/Aubrey Gemignani)

Ethiraj Venkatapathy, Senior Technologist for the Entry System Technologies at NASA’s Ames Research Center, receives an award after giving the Paolo Santini Memorial Lecture: Ablators from Apollo to Future Missions to Moon, Mars, and Beyond at the 70th International Astronautical Congress, Wednesday, Oct. 23, 2019 at the Walter E. Washington Convention Center in Washington. Photo Credit: (NASA/Aubrey Gemignani)

Ethiraj Venkatapathy, Senior Technologist for the Entry System Technologies at NASA’s Ames Research Center, is seen during the Paolo Santini Memorial Lecture: Ablators from Apollo to Future Missions to Moon, Mars, and Beyond at the 70th International Astronautical Congress, Wednesday, Oct. 23, 2019 at the Walter E. Washington Convention Center in Washington. Photo Credit: (NASA/Aubrey Gemignani)

Ben Reed, Deputy Division Director of the Satellite Servicing Project Division at NASA's Goddard Space Flight Center speaks during a special session titled ”The Immortal Spaceship: A Discussion on the Use Cases and Value of Persistent Platforms” at the 70th International Astronautical Congress, Thursday, Oct. 24, 2019, at the Walter E. Washington Convention Center in Washington. Photo Credit: (NASA/Joel Kowsky)

Ethiraj Venkatapathy, Senior Technologist for the Entry System Technologies at NASA’s Ames Research Center, is seen during the Paolo Santini Memorial Lecture: Ablators from Apollo to Future Missions to Moon, Mars, and Beyond at the 70th International Astronautical Congress, Wednesday, Oct. 23, 2019 at the Walter E. Washington Convention Center in Washington. Photo Credit: (NASA/Aubrey Gemignani)

Ethiraj Venkatapathy, Senior Technologist for the Entry System Technologies at NASA’s Ames Research Center, answers a question after giving the Paolo Santini Memorial Lecture: Ablators from Apollo to Future Missions to Moon, Mars, and Beyond at the 70th International Astronautical Congress, Wednesday, Oct. 23, 2019 at the Walter E. Washington Convention Center in Washington. Photo Credit: (NASA/Aubrey Gemignani)

NASA Administrator Jim Bridenstine speaks to agency employees as they gather for a group picture at the 70th International Astronautical Congress, Wednesday, Oct. 23, 2019 at the Walter E. Washington Convention Center in Washington. Photo Credit: (NASA/Joel Kowsky)

ESA (European Space Agency) astronaut, André Kuipers speaks during an astronaut panel discussion at the 70th International Astronautical Congress, Friday, Oct. 25, 2019, at the Walter E. Washington Convention Center in Washington. Photo credit: (NASA/Aubrey Gemignani)

A student asks NASA Administrator Jim Bridenstine a question during a Heads of Agency interactive session with students at the 70th International Astronautical Congress, Monday, Oct. 21, 2019 at the Walter E. Washington Convention Center in Washington. Photo credit: (NASA/Aubrey Gemignani)

NASA Science Mission Directorate Astrophysicist Dominic Bedford, right, delivers remarks during the Library of Congress National Book Festival Saturday, Aug. 24, 2024, at the Walter E. Washington Convention Center in Washington. Photo Credit: (NASA/Keegan Barber)

NASA astronaut Alvin Drew, right, spoke about his time in space at a STEM day session with students during the 70th International Astronautical Congress, Wednesday, Oct. 23, 2019 at the Walter E. Washington Convention Center in Washington. Photo credit: (NASA/Aubrey Gemignani)

NASA Administrator Jim Bridenstine is seen during the Global Networking Forum Young Professionals Town Hall at the 70th International Astronautical Congress, Wednesday, Oct. 23, 2019 at the Walter E. Washington Convention Center in Washington. Photo Credit: (NASA/Joel Kowsky)

Philippe Étienne, French Ambassador to the U.S. touches a Mars meteorite at the NASA exhibit during the 70th International Astronautical Congress, Wednesday, Oct. 23, 2019, at the Walter E. Washington Convention Center in Washington. Photo credit: (NASA/Aubrey Gemignani)

Roscosmos cosmonaut and executive director for piloted spaceflights, Sergey Krikalev speaks to former NASA Administrator and astronaut, Charlie Bolden during an astronaut and cosmonaut panel discussion at the 70th International Astronautical Congress, Friday, Oct. 25, 2019 at the Walter E. Washington Convention Center in Washington. Photo credit: (NASA/Aubrey Gemignani)

European astronaut and professor, Institute of Space Systems, Reinhold Ewald, speaks during an astronaut panel discussion at the 70th International Astronautical Congress, Friday, Oct. 25, 2019, at the Walter E. Washington Convention Center in Washington. Photo credit: (NASA/Aubrey Gemignani)

NASA astronaut Jeanette Epps, right, spoke about her time in space at a STEM day session with students during the 70th International Astronautical Congress, Wednesday, Oct. 23, 2019 at the Walter E. Washington Convention Center in Washington. Photo credit: (NASA/Aubrey Gemignani)

A student asks NASA Administrator Jim Bridenstine a question during a Heads of Agency interactive session at the 70th International Astronautical Congress, Monday, Oct. 21, 2019 at the Walter E. Washington Convention Center in Washington. Photo credit: (NASA/Aubrey Gemignani)

S. Somanath, Director of Vikram Sarabhai Space Centre, Indian Space Research Organization (ISRO), during the Heads of Agency press conference at the 70th International Astronautical Congress, Monday, Oct. 21, 2019 at the Walter E. Washington Convention Center in Washington. Photo Credit: (NASA/Bill Ingalls)

NASA Science Mission Directorate Program Executive Rosa Avalos-Warren delivers remarks during the Library of Congress National Book Festival Saturday, Aug. 24, 2024, at the Walter E. Washington Convention Center in Washington. Photo Credit: (NASA/Keegan Barber)