Make this text less biased: apollo 8, the second manned mission in the united states apollo space program, was launched on december 21, 1968, and became the first manned spacecraft to leave earth orbit, reach the earth's moon, orbit it and return safely to earth.
apollo 8, the second human spacefligh mission in the united states apollo space program, was launched on december 21, 1968, and became the first manned spacecraft to leave earth orbit, reach the earth's moon, orbit it and return safely to earth.