Apollo 9 tested the spacecraft that would carry astronauts to the Moon. Two crew members flew it independently in Earth orbit, where returning safely depended on rendezvousing and docking with the ...

Apollo is remembered for Neil Armstrong stepping onto the Moon, but the program was built through a long chain of dangerous tests, failures, fixes, and near disasters. Before Apollo 11, NASA had to ...

Early Apollo Missions: Earth Orbit Apollo missions flew unmanned until October 11, 1968, when Wally Schirra, Donn Eisele and ...