OTD…April 28 and STS-39

#OTD in 1995, Endeavour launched on the ASTRO-2 astronomy mission:

#OTD in 2001, Discovery launched on STS-102 to exchange crews aboard the International Space Station

Mankind’s first landing on the Moon and stepping foot on the lunar surface occurred today in 1969 by Apollo 11 astronauts Neil Armstrong and Buzz Aldrin.