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

From left to right, Ukraine Deputy Minister of Economy, Ihor Fomenko, NASA Administrator Bill Nelson, Ambassador of Ukraine, Her Excellency Oksana Markarova, and Deputy Chairman of the State Space Agency of Ukraine, Volodymyr Mikheiev, pose for a photo after Nelson and Mikheiev signed a joint statement on civil space cooperation between NASA and the State Space Agency of Ukraine, Friday April 21, 2023 at the Mary W. Jackson NASA Headquarters building in Washington DC. Photo Credit: (NASA/Aubrey Gemignani)

NASA Administrator Bill Nelson, left, and Deputy Chairman of the State Space Agency of Ukraine, Volodymyr Mikheiev, sign a joint statement on civil space cooperation between NASA and the State Space Agency of Ukraine, Friday April 21, 2023 at the Mary W. Jackson NASA Headquarters building in Washington DC. Photo Credit: (NASA/Aubrey Gemignani)

NASA Administrator Bill Nelson, left, and Deputy Chairman of the State Space Agency of Ukraine, Volodymyr Mikheiev, display their signed joint statements on civil space cooperation between NASA and the State Space Agency of Ukraine, Friday April 21, 2023 at the Mary W. Jackson NASA Headquarters building in Washington DC. Photo Credit: (NASA/Aubrey Gemignani)

NASA Administrator Bill Nelson, left, and Deputy Chairman of the State Space Agency of Ukraine, Volodymyr Mikheiev, sign a joint statement on civil space cooperation between NASA and the State Space Agency of Ukraine, Friday April 21, 2023 at the Mary W. Jackson NASA Headquarters building in Washington DC. Photo Credit: (NASA/Aubrey Gemignani)

NASA Administrator Bill Nelson, left shows Ambassador of Ukraine, Her Excellency Oksana Markarova, second from right, and Deputy Chairman of the State Space Agency of Ukraine, Volodymyr Mikheiev, right, some of the James Webb Space Telescope (JWST) images before signing a joint statement on civil space cooperation between NASA and the State Space Agency of Ukraine, Friday April 21, 2023 at the Mary W. Jackson NASA Headquarters building in Washington DC. Photo Credit: (NASA/Aubrey Gemignani)

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)

NASA Administrator Bill Nelson, left shows Ambassador of Ukraine, Her Excellency Oksana Markarova, second from left, Ukraine Deputy Minister of Economy, Ihor Fomenko, third from left, Deputy Chairman of the State Space Agency of Ukraine, Volodymyr Mikheiev, right, and Embassy of Ukraine’s Chief of Staff, Denys Sienik, a model in his office before signing a joint statement on civil space cooperation between NASA and the State Space Agency of Ukraine, Friday April 21, 2023 at the Mary W. Jackson NASA Headquarters building in Washington DC. Photo Credit: (NASA/Aubrey Gemignani)

NASA Administrator Bill Nelson, left greets Ambassador of Ukraine, Her Excellency Oksana Markarova, right, Deputy Chairman of the State Space Agency of Ukraine, Volodymyr Mikheiev, second from right, Ukraine Deputy Minister of Economy, Ihor Fomenko, not pictured, and Embassy of Ukraine’s Chief of Staff, Denys Sienik, before signing a joint statement on civil space cooperation between NASA and the State Space Agency of Ukraine, Friday April 21, 2023 at the Mary W. Jackson NASA Headquarters building in Washington DC. Photo Credit: (NASA/Aubrey Gemignani)

NASA Administrator Bill Nelson, left shows Ambassador of Ukraine, Her Excellency Oksana Markarova, second from left, Ukraine Deputy Minister of Economy, Ihor Fomenko, third from left, and Deputy Chairman of the State Space Agency of Ukraine, Volodymyr Mikheiev, right, a model of the Space Launch System (SLS) before signing a joint statement on civil space cooperation between NASA and the State Space Agency of Ukraine, Friday April 21, 2023 at the Mary W. Jackson NASA Headquarters building in Washington DC. Photo Credit: (NASA/Aubrey Gemignani)