NASA Administrator Bill Nelson, left, shakes hands with Bulgarian Minister of Finance Assen Vassilev, as they meet at the Mary W. Jackson NASA Headquarters building, Wednesday, Feb. 7, 2024, in Washington. Photo Credit: (NASA/Joel Kowsky)
NASA Administrator Bill Nelson, left, shakes hands with Bulgarian Minister of Finance Assen Vassilev, as they meet at the Mary W. Jackson NASA Headquarters building, Wednesday, Feb. 7, 2024, in Washington. Photo Credit: (NASA/Joel Kowsky)