April 15, 1970

"On the afternoon of April 15, 1970, somewhere between the Moon and the Earth, three men were sitting inside a spacecraft they were not supposed to be living in, watching their breath fog in front of them, and looking through a small triangular window at a tiny crescent of blue and white."https://spacedaily.com/sd-in-april-1970-the-crew-of-apollo-13-navigated-home-by-holding-the-spacecraft-against-the-terminator-of-the-earth-the-line-where-day-met-night-on-the-planet-they-were-trying-to-reach-timing-a-fou/