Spirit of Apollo: 50th Anniversary of Apollo 8

Ellen Stofan, Director of Smithsonian's National Air and Space Museum, left, and NASA Administrator Jim Bridenstine look at Jim Lovell's Apollo 8 flight plan with Andrew Johnston, Vice President for Astronomy and Collections at Chicago's Adler Planetarium, during the Smithsonian National Air and Space Museum's Spirit of Apollo event commemorating the 50th anniversary of Apollo 8, Tuesday, Dec. 11, 2018 at the Washington National Cathedral in Washington, DC. Apollo 8 was humanity's first journey to another world, taking astronauts Frank Borman, Jim Lovell, and William Anders to the Moon and back in December of 1968. Photo Credit: (NASA/Joel Kowsky)

Ellen Stofan, Director of Smithsonian's National Air and Space Museum, left, and NASA Administrator Jim Bridenstine look at Jim Lovell's Apollo 8 flight plan with Andrew Johnston, Vice President for Astronomy and Collections at Chicago's Adler Planetarium, during the Smithsonian National Air and Space Museum's Spirit of Apollo event commemorating the 50th anniversary of Apollo 8, Tuesday, Dec. 11, 2018 at the Washington National Cathedral in Washington, DC. Apollo 8 was humanity's first journey to another world, taking astronauts Frank Borman, Jim Lovell, and William Anders to the Moon and back in December of 1968. Photo Credit: (NASA/Joel Kowsky)