Add Yahoo as a preferred source to see more of our stories on Google. On Dec. 21, 1968, NASA’s Apollo 8 mission launched to the moon. Apollo 8 was the second crewed mission in NASA’s Apollo program.

Fifty-seven years ago, three American astronauts set forth on one of the most audacious and inspiring journeys in human history. In late December 1968, NASA astronauts Frank Borman, James Lovell, and ...