NASA Administrator Jim Bridenstine, third from right, and Deputy Administrator Jim Morhard, fourth from right, speak with Professor Johann-Dietrich Worner, Director General of ESA (European Space Agency), fourth from left, during the 70th International Astronautical Congress, Tuesday, Oct. 22, 2019 in Washington. Photo Credit: (NASA/Aubrey Gemignani)

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)

Canadian Space Agency (CSA) President, Sylvain Laporte, 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, center, and Deputy Administrator Jim Morhard, left, speak with Professor Johann-Dietrich Worner, Director General of ESA (European Space Agency), during the 70th International Astronautical Congress, Tuesday, Oct. 22, 2019 in Washington. Photo Credit: (NASA/Aubrey Gemignani)

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)

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 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)

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)

NASA Administrator Jim Bridenstine, right, signs an agreement with Dr. Marc Serres, chief executive officer, Luxembourg Space Agency (LSA), left, while the Honorable James Randolph Evans, Ambassador to the Grant Duchy of Luxembourg, back right, and Etienne Schneider, Deputy Prime Minister, back left, observe at the 70th International Astronautical Congress, Tuesday, Oct. 22, 2019 in Washington. Photo Credit: (NASA/Aubrey Gemignani)

Japan Aerospace and Exploration Agency (JAXA) President, Dr. Hiroshi Yamakawa, 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)

Chairman of the UAE Space Agency (UAESA), H.E. Dr. Ahmad bin Abdulla Humaid Belhoul Al Falasi, 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)

NASA Associate Administrator for the Science Mission Directorate, Dr. Thomas Zurbuchen, 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)

NASA Administrator Jim Bridenstine, right, and Dr. Marc Serres, chief executive officer, Luxembourg Space Agency (LSA), left, shake hands after signing an agreement while the Honorable James Randolph Evans, Ambassador to the Grant Duchy of Luxembourg, back right, and Etienne Schneider, Deputy Prime Minister, back left, observed at the 70th International Astronautical Congress, Tuesday, Oct. 22, 2019 in Washington. Photo Credit: (NASA/Aubrey Gemignani)

Portugal Space Agency President, Dr. Chiara Manfletti, 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)

Professor Johann-Dietrich Worner, Director General of ESA (European Space Agency), reacts to something NASA Administrator Jim Bridenstine said during the 70th International Astronautical Congress, Tuesday, Oct. 22, 2019 in Washington. Photo Credit: (NASA/Aubrey Gemignani)