OTD…May 11 and STS-125

#OTD in 1985…Discovery launched to deploy three satellites and rendezvous with another for daring repair

Atlantis blasted off on May 11, 2009 for the final space shuttle mission to service the Hubble Space Telescope, a dramatic flight that prepared the iconic observatory for a new revolution of discovery

#OTD in 1997…Discovery launched to deploy and later retrieve the CRISTA-SPAS atmospheric research satellite