NASA’s First Stellar Observatory, OAO 2, Turns 50 - NASA
At 3:40 a.m. EST on Saturday, Dec. 7, 1968, just three weeks before the highly anticipated launch of Apollo 8 and the first crewed flight to the …
At 3:40 a.m. EST on Saturday, Dec. 7, 1968, just three weeks before the highly anticipated launch of Apollo 8 and the first crewed flight to the …