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)

Jean-Yves Le Gall, President of the Centre National d’Études Spatiales (CNES) talks with NASA Administrator Jim Bridenstine during a meeting at the 70th International Astronautical Congress, Thursday, Oct. 24, 2019, in Washington. Photo Credit: (NASA/Bill Ingalls)

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)

NASA Administrator Jim Bridenstine gives an update on the agency’s Artemis program and the critical role international partnerships have in returning astronauts to the Moon and going on to Mars at the 70th International Astronautical Congress, Friday, Oct. 25, 2019, in Washington. Photo Credit: (NASA/Bill Ingalls)

Michael Meyer, Lead Scientist for NASA's Mars Exploration Program, 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)

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)

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 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)

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)

Emma Marcucci, Education and Outreach Scientist at the Space Telescope Science Institute, speaks about the planets in our Solar System during Sneak Peek Friday at the USA Science and Engineering Festival, Friday, April 6, 2018 at the Walter E. Washington Convention Center in Washington, DC. The festival is open to the public April 7-8. Photo Credit: (NASA/Joel Kowsky)

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)

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 Administrator Jim Bridenstine gives an update on the agency’s Artemis program and the critical role international partnerships have in returning astronauts to the Moon and going on to Mars at the 70th International Astronautical Congress, Friday, Oct. 25, 2019, in Washington. Photo Credit: (NASA/Bill Ingalls)

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)

An audience member dressed in character listens as NASA Administrator Jim Bridenstine talks about getting American astronauts to the Moon in the next five years while participating in a Future Con panel discussion at Awesome Con, Saturday, April 27, 2019 at the Walter E. Washington Convention Center in Washington. Future Con highlights the intersection of science, technology, and science fiction inside D.C.’s largest pop culture event. Photo Credit: (NASA/Bill Ingalls)

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)

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)

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)

NASA Administrator Jim Bridenstine talks about getting American astronauts to the Moon in the next five years while participating in a Future Con panel discussion at Awesome Con, Saturday, April 27, 2019 at the Walter E. Washington Convention Center in Washington. Future Con highlights the intersection of science, technology, and science fiction inside D.C.’s largest pop culture event. Photo Credit: (NASA/Bill Ingalls)

Avi Blasberger, Director of the Israel Space Agency (ISA), 2nd from right, meets with NASA Administrator Jim Bridenstine, 2nd from left, during the 70th International Astronautical Congress, Thursday, Oct. 24, 2019, in Washington. Photo Credit: (NASA/Bill Ingalls)

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)

Prasun Desai, Deputy Associate Administrator for Management in NASA’s Space Technology Mission Directorate 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)

Jean-Yves Le Gall, president of the French space agency, National Centre for Space Studies (CNES), tests a robotic arm 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 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)

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)

Attendees view a Moon rock that was returned by the Apollo 17 mission during Sneak Peek Friday at the USA Science and Engineering Festival, Friday, April 6, 2018 at the Walter E. Washington Convention Center in Washington, DC. The festival is open to the public April 7-8. Photo Credit: (NASA/Joel Kowsky)

NASA Chief Scientist Jim Green, left, Lisa Pratt, NASA's Planetary Protection Officer, Michael Meyer, Lead Scientist for NASA's Mars Exploration Program, Dan Hendrickson, Vice President of Business Development at Astrobotic Technology, Kyle Acierno, Vice President of Global Sales and Strategy at ispace, and Simonetta Di Pippo, Director of the United Nations Office for Outer Space Affairs, right, are 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)

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)

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)

Jean-Yves Le Gall, President of the Centre National d’Études Spatiales (CNES), 2nd from right, talks with NASA Administrator Jim Bridenstine, 4th from left, during a meeting at the 70th International Astronautical Congress, Thursday, Oct. 24, 2019, in Washington. Photo Credit: (NASA/Bill Ingalls)

NASA Acting Chief Technologist Douglas Terrier speaks about technology challenges for the Moon, Mars, and beyond during Sneak Peek Friday at the USA Science and Engineering Festival, Friday, April 6, 2018 at the Walter E. Washington Convention Center in Washington, DC. The festival is open to the public April 7-8. Photo Credit: (NASA/Joel Kowsky)

Jean-Yves Le Gall, president of the French space agency, National Centre for Space Studies (CNES), 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)

NASA Administrator Jim Bridenstine, left, and Jackelynne Silva-Martinez, an Aerospace Engineer in Mission Planning Operations at NASA’s Johnson Space Center are 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)

Jean-Yves Le Gall, president of the French space agency, National Centre for Space Studies (CNES), center, shakes hands with NASA astronaut Doug Wheelock after he and Philippe Étienne, French Ambassador to the U.S., second from left, visited 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 answers questions during a media availability at the 70th International Astronautical Congress, Thursday, Oct. 24, 2019, in Washington. Photo Credit: (NASA/Bill Ingalls)

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)

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)

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)

Julie Robinson, Chief Scientist for NASA's International Space Station Division, left, and Livio Narici, Professor of Applied Physics at the Università di Roma "Tor Vergata" and ASI, lead 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)

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 astronaut Doug Wheelock 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)

An audience member dressed in character listens as NASA Administrator Jim Bridenstine talks about getting American astronauts to the Moon in the next five years while participating in a Future Con panel discussion at Awesome Con, Saturday, April 27, 2019 at the Walter E. Washington Convention Center in Washington. Future Con highlights the intersection of science, technology, and science fiction inside D.C.’s largest pop culture event. Photo Credit: (NASA/Bill Ingalls)

Jean-Yves Le Gall, President of International Astronautical Federation (IAF), 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/Bill Ingalls)

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)

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)

Jessica Deihl, an attorney at NASA’s Goddard Space Flight Center, left, Christine Pham, an attorney at NASA Headquarters, Bill Johnson, an attorney at NASA’s Glenn Research Center, David Lopez, an attorney at NASA Headquarters, Brian Stanford an attorney at NASA Headquarters, and Lisette Washington an attorney at NASA Headquarters, are seen during a “The Moon/Mars Generation Lawyers: A Discussion of the Legal Framework Taking NASA Back to the Future” at the 70th International Astronautical Congress, Thursday, Oct. 24, 2019, at the Walter E. Washington Convention Center in Washington. Photo Credit: (NASA/Joel Kowsky)

Dipak Srinivasan, Europa Clipper Telecommunications Manager, Johns Hopkins University, Applied Physics Laboratory (APL), left, moderates a panel titled, “Europa Clipper: Making a Mission to Understand Our Place in the Universe” with panelists, from left to right, Robert Pappalardo, Europa Clipper Project Scientist, NASA Jet Propulsion Laboratory (JPL); Karen Kirby, Europa Clipper Deputy Project System Engineer, 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)

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 learn about packing for space travel during Sneak Peek Friday at the USA Science and Engineering Festival, Friday, April 6, 2018 at the Walter E. Washington Convention Center in Washington, DC. The festival is open to the public April 7-8. Photo Credit: (NASA/Joel Kowsky)

Members of the astronaut panel discussion, from left to right, Roscosmos cosmonaut and executive director for piloted spaceflights, Sergey Krikalev; former NASA astronaut Leland Melvin; former NASA astronaut Mary Cleave; former NASA Administrator and astronaut, Charlie Bolden; former Cosmonaut Dumitru-Dorin Prunariu; ESA (European Space Agency) astronaut, André Kuipers; and European astronaut and professor, Institute of Space Systems, Reinhold Ewald, pose while the audience takes photos, at the conclusion of the event; during the 70th International Astronautical Congress, Friday, Oct. 25, 2019, at the Walter E. Washington Convention Center in Washington. Photo credit: (NASA/Aubrey Gemignani)

Jean-Yves Le Gall, President of the Centre National d’Études Spatiales (CNES), left, shakes hands with NASA Administrator Jim Bridenstine after signing an amendment to the Surface Water and Ocean Topography Mission agreement at the 70th International Astronautical Congress, Thursday, Oct. 24, 2019, in Washington. Photo Credit: (NASA/Bill Ingalls)

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)

The Honorable Karen Andrews, Minister of Parliament and Minister, Industry, Science and Technology for Austrailia speaks with NASA Administrator Jim Bridenstine, left, during the 70th International Astronautical Congress, Monday, Oct. 21, 2019 in Washington. Photo Credit: (NASA/Aubrey Gemignani)

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)

Tom Barclay, Director of the Kepler/K2 Guest Observer Office at NASA's Ames Research Center, speaks about exoplanets and NASA's next exoplanet mission, the Transiting Exoplanet Survey Satellite, during Sneak Peek Friday at the USA Science and Engineering Festival, Friday, April 6, 2018 at the Walter E. Washington Convention Center in Washington, DC. The festival is open to the public April 7-8. Photo Credit: (NASA/Joel Kowsky)

NASA Acting Chief Technologist Douglas Terrier speaks about technology challenges for the Moon, Mars, and beyond during Sneak Peek Friday at the USA Science and Engineering Festival, Friday, April 6, 2018 at the Walter E. Washington Convention Center in Washington, DC. The festival is open to the public April 7-8. 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)

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)

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'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 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)

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)

NASA Administrator Jim Bridenstine, right, shakes hands with Vice President Mike Pence after introducing him 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)

Philippe Étienne, French Ambassador to the U.S., right, and Jean-Yves Le Gall, president of the French space agency, National Centre for Space Studies (CNES), left, try 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)

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)

Karen Kirby, Europa Clipper Deputy Project System Engineer, 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)

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)

Seishiro Kibee on behalf of the International Astronautical Federation Awards Committee, left, NASA Administrator Jim Bridenstine, Luke Newell, grandson of Apollo 11 command module pilot Michael Collins, Mark Armstrong, son of Apollo 11 commander Neil Armstrong, and Apollo 11 lunar module pilot Buzz Aldrin, and Jean-Yves Le Gall, President of International Astronautical Federation (IAF), right, pose for a picture after the 2019 World Space Award was presented to the Apollo 11 crew 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)

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)

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)

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)

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)

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)

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)

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)

Former NASA astronaut Leland Melvin, left, moderates a panel with, from left to right, Roscosmos cosmonaut and executive director for piloted spaceflights, Sergey Krikalev; former NASA astronaut Mary Cleave; former NASA Administrator and astronaut, Charlie Bolden; ESA (European Space Agency) astronaut, André Kuipers; and European astronaut and professor, Institute of Space Systems, Reinhold Ewald, 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 and Jackelynne Silva-Martinez, an Aerospace Engineer in Mission Planning Operations at NASA’s Johnson Space Center are 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)

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)

Tom Barclay, Director of the Kepler/K2 Guest Observer Office at NASA's Ames Research Center, speaks about exoplanets and NASA's next exoplanet mission during Sneak Peek Friday at the USA Science and Engineering Festival, Friday, April 6, 2018 at the Walter E. Washington Convention Center in Washington, DC. The festival is open to the public April 7-8. Photo Credit: (NASA/Joel Kowsky)

S. Somanath, Director of Vikram Sarabhai Space Centre, Indian Space Research Organization (ISRO), left, NASA Administrator Jim Bridenstine, Hiroshi Yamakawa, President of the Japan Aerospace Exploration Agency (JAXA), Sergey Krikalev, Executive Director for Piloted Spaceflights for Roscosmos, and Johann-Dietrich Woerner, Director General of ESA (European Space Agency), right, are 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/Joel Kowsky)

NASA Administrator Jim Bridenstine gives an update on the agency’s Artemis program and the critical role international partnerships have in returning astronauts to the Moon and going on to Mars at the 70th International Astronautical Congress, Friday, Oct. 25, 2019, in Washington. Photo Credit: (NASA/Bill Ingalls)

Steven Pawson, Chief of the Global Modeling and Assimilation Office at NASA's Goddard Space Flight Center, speaks about NASA's observations of Earth during Sneak Peek Friday at the USA Science and Engineering Festival, Friday, April 6, 2018 at the Walter E. Washington Convention Center in Washington, DC. The festival is open to the public April 7-8. Photo Credit: (NASA/Joel Kowsky)

NASA Administrator Jim Bridenstine talks about getting American astronauts to the Moon in the next five years while participating in a Future Con panel discussion at Awesome Con, Saturday, April 27, 2019 at the Walter E. Washington Convention Center in Washington. Future Con highlights the intersection of science, technology, and science fiction inside D.C.’s largest pop culture event. Photo Credit: (NASA/Bill Ingalls)

Attendees listen to a NASA staff member speak about the Sun and NASA's Solar Dynamics Observatory mission during Sneak Peek Friday at the USA Science and Engineering Festival, Friday, April 6, 2018 at the Walter E. Washington Convention Center in Washington, DC. The festival is open to the public April 7-8. 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/Joel Kowsky)

NASA Administrator Jim Bridenstine answers questions during a media availability at the 70th International Astronautical Congress, Thursday, Oct. 24, 2019, in Washington. Photo Credit: (NASA/Bill Ingalls)

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)

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)

NASA astronaut Doug Wheelock, left, Rick Armstrong, son of Apollo 11 astronaut Neil Armstrong, second from left, Apollo 11 astronaut Buzz Aldrin, second from right, and John Logsdon, Apollo historian and Professor Emeritus at George Washington University, right, are seen during a panel discussion 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)

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)

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)

NASA Administrator Jim Bridenstine gives an update on the agency’s Artemis program and the critical role international partnerships have in returning astronauts to the Moon and going on to Mars at the 70th International Astronautical Congress, Friday, Oct. 25, 2019, in Washington. Photo Credit: (NASA/Bill Ingalls)

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)

NASA Administrator Jim Bridenstine gives an update on the agency’s Artemis program and the critical role international partnerships have in returning astronauts to the Moon and going on to Mars at the 70th International Astronautical Congress, Friday, Oct. 25, 2019, in Washington. Photo Credit: (NASA/Bill Ingalls)

Former Congressman John Culberson gives remarks after having received the NASA Distinguished Public Service medal, which is NASA’s highest award for a non-NASA individual, by NASA Administrator Jim Bridenstine during the 70th International Astronautical Congress, Friday, Oct. 25, 2019, in Washington. Photo Credit: (NASA/Bill Ingalls)

NASA Administrator Jim Bridenstine answers questions during a media availability at the 70th International Astronautical Congress, Thursday, Oct. 24, 2019, in Washington. Photo Credit: (NASA/Bill Ingalls)

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)

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)

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)

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)