NASA Administrator Bill Nelson, left, shakes hands with Deputy Chairman of the State Space Agency of Ukraine, Volodymyr Mikheiev, while Ambassador of Ukraine, Her Excellency Oksana Markarova looks on, after a joint statement on civil space cooperation between NASA and the State Space Agency of Ukraine was signed, Friday April 21, 2023 at the Mary W. Jackson NASA Headquarters building in Washington DC. Photo Credit: (NASA/Aubrey Gemignani)