OTD…April 12 and STS-1 and 51D

#OTD…Launch of Discovery in 1990 with the Hubble Space Telescope, our window on the universe!

Apollo 11 splashed down in the Pacific today in 1969, fulfilling President Kennedy’s challenge to a nation of landing a man to the Moon and returning him safely to the Earth.

#OTD in 2009, shuttle Discovery delivers power payload to space station.