December 24, 1968
NASA
| Global | art: photo
Hastily snapped by Apollo 8's Bill Anders with a Hasselblad camera as the first crewed spacecraft to circumnavigate the moon reappeared from the dark side for the fourth time. The earth's atmosphere is visible (“beautiful blue halo”) as first seen by Yuri Gagarin. In 1991, Carl Sagan would direct Voyager 1 to look back at earth to capture our "pale blue dot."