Reference

Shuttle Payloads and Related Information - Hubble Space Telescope and Great Observatory Missions
 
Space shuttle missions during which the Hubble Space Telescope was deployed, repaired or serviced and Great Observatory Missions were deployed.

› STS-31
Discovery, April 24 - 29, 1990. The Hubble Space Telescope was deployed to a 380-statute-mile orbit.

› STS-37
Atlantis, April 5 - 11, 1991. The second great observatory, Gamma Ray Observatory (GRO) was deployed. This observatory has since been renamed the Compton Gamma Ray Observatory in honor of Arthur Holly Compton.

› STS-61
Endeavour, Dec. 2 - 13, 1993. The first mission to service and repair the Hubble telescope.

› STS-82
Discovery, Feb. 11 - 21, 1997. The second mission to service and repair the telescope.

› STS-93
Columbia, July 23 - 27, 1999. The third great observatory, Chandra X-ray Observatory was deployed.

› STS-103
Discovery, Dec. 19 - 27, 1999. The third mission to service and repair the Hubble telescope.

› STS-109
Columbia, March 1 - 12, 2002. The fourth mission to service and repair the telescope.

› STS-125
Atlantis, May 11 - 24, 2009. The fifth and final mission to service and repair the telescope.