Acting Associate Administrator for NASA's Space Technology Mission Directorate is seen during a NASA town hall on the amendment to the fiscal year 2020 budget request that supports the agency’s plan to land astronauts on the Moon by 2024, Tuesday, May 14, 2019 at NASA Headquarters in Washington, DC. Photo Credit: (NASA/Joel Kowsky)

NASA Administrator Jim Bridenstine, left, NASA Associate Administrator for Human Exploration and Operations William Gerstenmaier, second from left, acting Associate Administrator for NASA's Space Technology Mission Directorate, second from right, acting Associate Administrator for NASA's Science Mission Directorate Thomas Zurbuchen, right, are seen during a NASA town hall on the amendment to the fiscal year 2020 budget request that supports the agency’s plan to land astronauts on the Moon by 2024, Tuesday, May 14, 2019 at NASA Headquarters in Washington, DC. Photo Credit: (NASA/Joel Kowsky)

NASA Administrator Jim Bridenstine, left, NASA Associate Administrator for Human Exploration and Operations William Gerstenmaier, second from left, acting Associate Administrator for NASA's Space Technology Mission Directorate, second from right, acting Associate Administrator for NASA's Science Mission Directorate Thomas Zurbuchen, right, are seen during a NASA town hall on the amendment to the fiscal year 2020 budget request that supports the agency’s plan to land astronauts on the Moon by 2024, Tuesday, May 14, 2019 at NASA Headquarters in Washington, DC. Photo Credit: (NASA/Joel Kowsky)

NASA Administrator Jim Bridenstine, left, NASA Associate Administrator for Human Exploration and Operations William Gerstenmaier, second from left, acting Associate Administrator for NASA's Space Technology Mission Directorate, second from right, acting Associate Administrator for NASA's Science Mission Directorate Thomas Zurbuchen, right, are seen during a NASA town hall on the amendment to the fiscal year 2020 budget request that supports the agency’s plan to land astronauts on the Moon by 2024, Tuesday, May 14, 2019 at NASA Headquarters in Washington, DC. Photo Credit: (NASA/Joel Kowsky)

NASA Administrator Jim Bridenstine, left, NASA Associate Administrator for Human Exploration and Operations William Gerstenmaier, second from left, acting Associate Administrator for NASA's Space Technology Mission Directorate, second from right, acting Associate Administrator for NASA's Science Mission Directorate Thomas Zurbuchen, right, are seen during a NASA town hall on the amendment to the fiscal year 2020 budget request that supports the agency’s plan to land astronauts on the Moon by 2024, Tuesday, May 14, 2019 at NASA Headquarters in Washington, DC. Photo Credit: (NASA/Joel Kowsky)

NASA Administrator Jim Bridenstine, left, NASA Associate Administrator for Human Exploration and Operations William Gerstenmaier, second from left, acting Associate Administrator for NASA's Space Technology Mission Directorate, second from right, acting Associate Administrator for NASA's Science Mission Directorate Thomas Zurbuchen, right, are seen as they answer questions during a NASA town hall on the amendment to the fiscal year 2020 budget request that supports the agency’s plan to land astronauts on the Moon by 2024, Tuesday, May 14, 2019 at NASA Headquarters in Washington, DC. Photo Credit: (NASA/Joel Kowsky)