Apollo 8 entered lunar orbit on Christmas Eve 1968, broadcasting pictures of the Earth and moon. Jim Lovell, one of the astronauts, said, "The vast loneliness is awe-inspiring and it makes you realize just what you have back there on Earth." [808 X 646]

http://go.nasa.gov/2imrlhF via /r/spaceporn http://bit.ly/2haVZWa