OTD…July 4 and STS-121

#OTD…Gamma Ray Observatory launched in 1991 on Atlantis and Discovery’s 2010 ISS flight

OTD in 1969…The launch of Apollo 11 for the first human landing on the moon

NASA’s first space station — the Skylab orbital workshop — was launched atop a Saturn 5 rocket today, May 14, in 1973.