Michał Szaniawski, President of the Polish Space Agency (POLSA), left, and NASA Administrator Jim Bridenstine sign a joint statement on the margins of the IAC expressing their intent to discuss opportunities for cooperation, including sustainable activities around and on the Moon in connection with NASA’s Artemis program, Thursday, Oct. 24, 2019, during the 70th International Astronautical Congress in Washington. Photo Credit: (NASA/Bill Ingalls)

Michał Szaniawski, President of the Polish Space Agency (POLSA), left, and NASA Administrator Jim Bridenstine shake hands after signing a joint statement on the margins of the IAC expressing their intent to discuss opportunities for cooperation, including sustainable activities around and on the Moon in connection with NASA’s Artemis program, Thursday, Oct. 24, 2019, during the 70th International Astronautical Congress in Washington. Photo Credit: (NASA/Bill Ingalls)

Broadway performs are seen as they sing 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)

Students raise their hands to ask a question during a STEM day session at the 70th International Astronautical Congress, Thursday, Oct. 24, 2019, in Washington. Photo Credit: (NASA/Bill Ingalls)

Local students view a model of NASA’s Gateway spacecraft while visiting the NASA exhibit at the 70th International Astronautical Congress, Thursday, Oct. 24, 2019, in Washington. Photo Credit: (NASA/Joel Kowsky)

Ken Bowersox, acting Associate Administrator for NASA's Human Exploration and Operations Mission Directorate, speaks about NASA’s Moon to Mars Exploration Plans during a keynote at the 70th International Astronautical Congress, Monday, Oct. 21, 2019 at the Walter E. Washington Convention Center in Washington. Photo Credit: (NASA/Joel Kowsky)

Broadway performers are seen as they sing 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)

Leon Harris, master of ceremonies, welcomes attendees to 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)

Students raise their hands to ask a question during a STEM day session at the 70th International Astronautical Congress, Thursday, Oct. 24, 2019, in Washington. Photo Credit: (NASA/Bill Ingalls)

An audience member takes a photo as NASA Administrator Jim Bridenstine speaks during a multilateral meeting of the heads of space agencies at the 70th International Astronautical Congress, Tuesday, Oct. 22, 2019 in Washington. Photo Credit: (NASA/Aubrey Gemignani)

John Langford, President of the American Institute of Aeronautics and Astronautics (AIAA), delivers remarks 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)

NASA Chief Scientist Jim Green speaks about NASA Science under the National Space Exploration Campaign during a keynote at the 70th International Astronautical Congress, Monday, Oct. 21, 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 Administrator Jim Bridenstine gives remarks during the International Institute of Space Law (IISL), Manfred Lachs Space Law Moot Court Competition finals, Thursday, Oct. 24, 2019 at NASA Headquarters in Washington. Photo Credit: (NASA/Bill Ingalls)

Robert Pappalardo, Europa Clipper Project Scientist, NASA Jet Propulsion Laboratory (JPL) 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)

NASA Administrator Jim Bridenstine speaks about the agency’s Artemis program during an interactive STEM discussion with students attending the 70th International Astronautical Congress, Wednesday, Oct. 23, 2019, at NASA Headquarters in Washington. Photo Credit: (NASA/Joel Kowsky)

Swedish National Space Agency Director General, Anna Rathsman, speaks to NASA Administrator Jim Bridenstine during a multilateral meeting of the heads of space agencies at the 70th International Astronautical Congress, Tuesday, Oct. 22, 2019 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 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)

Vice President Mike Pence delivers remarks 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)

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)

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)

NASA director of Heliophysics division, Science Mission Directorate, Nicola Fox, speaks at a presentation titled, “The Challenge of Exploring Our Sun - the 60-Year Odyssey to Parker Solar Probe,” during the 70th International Astronautical Congress, Wednesday, Oct. 23, 2019, at the Walter E. Washington Convention Center in Washington. Photo credit: (NASA/Aubrey Gemignani)

Alexis Vance, a Pathways student engineering trainee at NASA’s Johnson Space Center, speaks about being an intern at NASA’s Johnson Space Center during an interactive STEM discussion with students attending the 70th International Astronautical Congress, Wednesday, Oct. 23, 2019, at NASA Headquarters in Washington. Photo Credit: (NASA/Joel Kowsky)

An audience member asks Brian Muirhead, Pre-project Manager of Mars Sample Return at NASA’s Jet Propulsion Laboratory a question after he gave a keynote titled “Mars Sample Return Mission Concept Status” at the 70th International Astronautical Congress, Wednesday, Oct. 23, 2019 at the Walter E. Washington Convention Center in Washington. Photo Credit: (NASA/Aubrey Gemignani)

Giorgio Saccoccia Head of the Italian Space Agency (ASI), speaks with NASA Administrator Jim Bridenstine before the signing of a joint statement at the 70th International Astronautical Congress, Wednesday, Oct. 23, 2019 in Washington. Photo Credit: (NASA/Joel Kowsky)

A student asks a panel of NASA astronauts including Doug Wheelock, Alvin Drew, Jeanette Epps, and former astronauts Janet Kavandi, and Bob Curbeam, a question about their time in space at a STEM day session 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 speaks during the Heads of Agency Plenary of 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)

NASA director of Heliophysics division, Science Mission Directorate, Nicola Fox, speaks at a presentation titled, “The Challenge of Exploring Our Sun - the 60-Year Odyssey to Parker Solar Probe,” during the 70th International Astronautical Congress, Wednesday, Oct. 23, 2019, at the Walter E. Washington Convention Center in Washington. Photo credit: (NASA/Aubrey Gemignani)

Breanne Stichler, a mechanical engineer in the Crawlers, Transporters and Structures group at NASA’s Kennedy Space Center, right, speaks about her path to working at NASA during an interactive STEM discussion with students attending the 70th International Astronautical Congress, Wednesday, Oct. 23, 2019, at NASA Headquarters in Washington. Photo Credit: (NASA/Joel Kowsky)

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)

An artist illustrates a panel discussion titled, “Europa Clipper: Making a Mission to Understand Our Place in the Universe,” with panelists Robert Pappalardo, Europa Clipper Project Scientist, NASA Jet Propulsion Laboratory (JPL); Karen Kirby, Europa Clipper Deputy Project System Engineer, Applied Physics Laboratory (APL); Jennifer Dooley, Europa Clipper Project Systems Engineer, JPL; Thomas Magner, Manager, APL; and Bill Nye, Chief Executive Officer, The Planetary Society, during the 70th International Astronautical Congress, Wednesday, Oct. 23, 2019 at the Walter E. Washington Convention Center in Washington. Photo credit: (NASA/Aubrey Gemignani)

Steve Clarke, Deputy Associate Administrator for Exploration in NASA’s Science Mission Directorate, answers a question from the audience during an interactive STEM discussion with students attending the 70th International Astronautical Congress, Wednesday, Oct. 23, 2019, at NASA Headquarters in Washington. Photo Credit: (NASA/Joel Kowsky)

Jennifer Dooley, Europa Clipper Project Systems Engineer, Jet Propulsion Laboratory (JPL), 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)

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)

NASA Administrator Jim Bridenstine is seen as he tours the exhibit hall at the 70th International Astronautical Congress, Monday, Oct. 21, 2019 at the Walter E. Washington Convention Center in Washington. Photo Credit: (NASA/Bill Ingalls)

Jennifer Fogarty, Chief Scientist for NASA’s Human Research Program, is 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)

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)

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

Farah Alibay, a systems engineer working on the Mars 2020 rover at NASA’s Jet Propulsion Laboratory, speaks about her path to working at NASA during an interactive STEM discussion with students attending the 70th International Astronautical Congress, Wednesday, Oct. 23, 2019, at NASA Headquarters in Washington. Photo Credit: (NASA/Joel Kowsky)

Hiroshi Yamakawa, President of the Japan Aerospace Exploration Agency (JAXA), speaks during the Heads of Agency Plenary of the 70th International Astronautical Congress, Monday, Oct. 21, 2019 at the Walter E. Washington Convention Center in Washington. Photo Credit: (NASA/Bill Ingalls)

Rick Armstrong, son of Apollo 11 astronaut Neil Armstrong answers a question during at panel discussion at 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)

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)

Kathleen Boggs, Systems and Technology Demonstration Manager in the International Space Station Division of NASA’s Human Exploration and Operations Mission Directorate, is seen a keynote titled “From LEO to the Moon, Mars, and Beyond: Shaping Capability Development Strategies for NASA’s Human Exploration Campaign” at the 70th International Astronautical Congress, Thursday, Oct. 24, 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)

NASA Deputy Administrator Jim Morhard is seen along side NASA Administrator Jim Bridenstine during a meeting with Sylvain Laporte, President of the Canadian Space Agency, at the 70th International Astronautical Congress, Wednesday, Oct. 23, 2019 in Washington. Photo Credit: (NASA/Joel Kowsky)

Austrailian Space Agency (ASA) Deputy Head, Anthony Murfett, speaks to NASA Administrator Jim Bridenstine during a multilateral meeting of the heads of space agencies at the 70th International Astronautical Congress, Tuesday, Oct. 22, 2019 in Washington. Photo Credit: (NASA/Aubrey Gemignani)

NASA Administrator Jim Bridenstine is seen as he tours the exhibit hall at the 70th International Astronautical Congress, Monday, Oct. 21, 2019 at the Walter E. Washington Convention Center in Washington. Photo Credit: (NASA/Bill Ingalls)

Robyn Gatens, Deputy Director of NASA’s International Space Station Program, during a discussion titled “ISS-Moon-Mars: Using Spaceflight Platforms to Study and Simulate Future Missions” during the 70th International Astronautical Congress, Monday, Oct. 21, 2019 at the Walter E. Washington Convention Center in Washington. Photo Credit: (NASA/Joel Kowsky)

Former NASA astronaut Leland Melvin moderates a panel with former NASA Administrator and astronaut, Charlie Bolden; former NASA astronaut Mary Cleave, European astronaut and professor, Institute of Space Systems, Reinhold Ewald; Roscosmos cosmonaut and executive director for piloted spaceflights, Sergey Krikalev; and ESA (European Space Agency) astronaut, André Kuipers during the 70th International Astronautical Congress, Friday, Oct. 25, 2019, at the Walter E. Washington Convention Center in Washington. Photo credit: (NASA/Aubrey Gemignani)

Sergey Krikalev, Executive Director for Piloted Spaceflights for Roscosmos, is seen 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)

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)

Former NASA astronaut Garrett Reisman talks about his time in space at a STEM day session with students during the 70th International Astronautical Congress, Thursday, Oct. 24, 2019, in Washington. Photo Credit: (NASA/Bill Ingalls)

NASA astronaut Alvin Drew talks about his time in space at a STEM day session with students during the 70th International Astronautical Congress, Thursday, Oct. 24, 2019, in Washington. Photo Credit: (NASA/Bill Ingalls)

Johann-Dietrich Woerner, Director General of ESA (European Space Agency), speaks during the Heads of Agency Plenary of the 70th International Astronautical Congress, Monday, Oct. 21, 2019 at the Walter E. Washington Convention Center in Washington. Photo Credit: (NASA/Joel Kowsky)

Jody Singer, Director of NASA’s Marshall Space Flight Center, is seen during an interactive STEM discussion with students attending the 70th International Astronautical Congress, Wednesday, Oct. 23, 2019, at NASA Headquarters in Washington. Photo Credit: (NASA/Joel Kowsky)

NASA Administrator Jim Bridenstine delivers remarks introducing 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)

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)

Sandra Cauffman, acting Director of NASA's Earth Science Division, is seen during a special session titled “Home Planet 2030 – The Role of Earth Observations in Studying Our Planet” at the 70th International Astronautical Congress, Tuesday, Oct. 22, 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)

Vice President Mike Pence delivers remarks 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)

Brian Muirhead, Pre-project Manager of Mars Sample Return at NASA’s Jet Propulsion Laboratory answers a question by NASA Chief Scientist, Jim Green, after giving a keynote titled “Mars Sample Return Mission Concept Status” 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 is seen as he tours the exhibit hall 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 Associate Administrator, Science Mission Directorate, Thomas Zurbuchen, introduces Nicola Fox, director of the Heliophysics division for the Science Mission Directorate, to give a presentation titled, “The Challenge of Exploring Our Sun - the 60-Year Odyssey to Parker Solar Probe,” 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 director of Heliophysics division, Science Mission Directorate, Nicola Fox, speaks at a presentation titled, “The Challenge of Exploring Our Sun - the 60-Year Odyssey to Parker Solar Probe,” during the 70th International Astronautical Congress, Wednesday, Oct. 23, 2019, at the Walter E. Washington Convention Center in Washington. Photo credit: (NASA/Aubrey Gemignani)

An artists rendition of the Psyche spacecraft is seen on scree as Linda Elkins-Tanton, Managing Director and Foundation Professor of Arizona State University’s School of Earth and Space Exploration, is seen during a keynote titled “The ASU Interplanetary Initiative: Advancing Society Through ” at the 70th International Astronautical Congress, Tuesday, Oct. 22, 2019 at the Walter E. Washington Convention Center in Washington. Elkins-Tanton is the principle investigator of NASA’s upcoming Psyche mission which is scheduled to launch in 2022. 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)

NASA astronaut Doug Wheelock is seen during an interactive STEM discussion with students attending the 70th International Astronautical Congress, Wednesday, Oct. 23, 2019, at NASA Headquarters in Washington. Wheelock was joined by a panel of young professionals from NASA centers across the country: Farah Alibay, a systems engineer working on the Mars 2020 rover at NASA’s Jet Propulsion Laboratory, Alexis Vance, a Pathways student engineering trainee at NASA’s Johnson Space Center, Victor Joel Cabezas Tapia, a Navigation, Guidance, and Control Engineer at NASA’s Marshall Space Flight Center, and Breanne Stichler, a mechanical engineer in the Crawlers, Transporters and Structures group at NASA’s Kennedy Space Center. Photo Credit: (NASA/Joel Kowsky)

A student asks a panel of NASA astronauts including Doug Wheelock, Alvin Drew, Jeanette Epps, and former astronauts Janet Kavandi, and Bob Curbeam, a question about their time in space at a STEM day session during the 70th International Astronautical Congress, Wednesday, Oct. 23, 2019 at the Walter E. Washington Convention Center in Washington. Photo credit: (NASA/Aubrey Gemignani)

Thomas Zurbuchen, Associate Administrator of NASA's Science Mission Directorate, left, speaks with Hansjörg Dittus, Executive Board Member for Space Research and Technology at the German Aerospace Center (DLR) during a meeting at the 70th International Astronautical Congress, Wednesday, Oct. 23, 2019 in Washington. Photo Credit: (NASA/Joel Kowsky)

NASA Administrator Jim Bridenstine, center in red tie, joins Jean-Yves Le Gall, President of International Astronautical Federation (IAF), and other space agency leaders and dignitaries for the ceremonial ribbon cutting to the exhibit hall 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 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)

Former NASA astronaut and co-chair of the local organizing committee for the International Astronautical Congress Sandy Magnus is seen during an interactive STEM discussion with students attending the 70th International Astronautical Congress, Wednesday, Oct. 23, 2019, at NASA Headquarters in Washington. Photo Credit: (NASA/Joel Kowsky)

Erica Rodgers, Science and Technology Partnerships Lead in NASA's Office of the Chief Technologist, 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)

NASA Chief Scientist, Jim Green, asks Brian Muirhead, Pre-project Manager of Mars Sample Return at NASA’s Jet Propulsion Laboratory a question after he gave a keynote titled “Mars Sample Return Mission Concept Status” at the 70th International Astronautical Congress, Wednesday, Oct. 23, 2019 at the Walter E. Washington Convention Center in Washington. Photo Credit: (NASA/Aubrey Gemignani)

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)

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)

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)

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)

Apollo 11 astronaut Buzz Aldrin delivers remarks 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)

Apollo 11 astronaut Buzz Aldrin is seen 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)

Farah Alibay, a systems engineer working on the Mars 2020 rover at NASA’s Jet Propulsion Laboratory, speaks about her path to working at NASA during an interactive STEM discussion with students attending the 70th International Astronautical Congress, Wednesday, Oct. 23, 2019, at NASA Headquarters in Washington. Photo Credit: (NASA/Joel Kowsky)

Breanne Stichler, a mechanical engineer in the Crawlers, Transporters and Structures group at NASA’s Kennedy Space Center, right, speaks about her path to working at NASA during an interactive STEM discussion with students attending the 70th International Astronautical Congress, Wednesday, Oct. 23, 2019, at NASA Headquarters 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)

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)

Kathleen Boggs, Systems and Technology Demonstration Manager in the International Space Station Division of NASA’s Human Exploration and Operations Mission Directorate, is seen a keynote titled “From LEO to the Moon, Mars, and Beyond: Shaping Capability Development Strategies for NASA’s Human Exploration Campaign” 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)

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)

Lawrence Friedl, Director of Applied Sciences Program in NASA’s Earth Science Division, is seen during a keynote titled “50 Years of Earth Observations: The contribution to sustainable development goals and plans for the future” at the 70th International Astronautical Congress, Friday, Oct. 25, 2019, at the Walter E. Washington Convention Center in Washington. Photo Credit: (NASA/Joel Kowsky)

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)

Linda Elkins-Tanton, Managing Director and Foundation Professor of Arizona State University’s School of Earth and Space Exploration, is seen during a keynote titled “The ASU Interplanetary Initiative: Advancing Society Through ” at the 70th International Astronautical Congress, Tuesday, Oct. 22, 2019 at the Walter E. Washington Convention Center in Washington. Elkins-Tanton is the principle investigator of NASA’s upcoming Psyche mission which is scheduled to launch in 2022. Photo Credit: (NASA/Joel Kowsky)

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)

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)

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)

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)

Brian Muirhead, Pre-project Manager of Mars Sample Return at NASA’s Jet Propulsion Laboratory is seen during a keynote titled “Mars Sample Return Mission Concept Status” at the 70th International Astronautical Congress, Wednesday, Oct. 23, 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)

NASA Administrator Jim Bridenstine speaks during the Heads of Agency Plenary of the 70th International Astronautical Congress, Monday, Oct. 21, 2019 at the Walter E. Washington Convention Center in Washington. Photo Credit: (NASA/Bill Ingalls)