70th International Astronautical Congress

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)

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)