STS031-S-073 (24 April 1990) --? A vertical view of the launch of the STS-31 mission. Onboard Space Shuttle Discovery are the crew of five veteran astronauts and the Hubble Space Telescope (HST). Official launch time was 8:33:51.0492 a.m. (EDT). Headed for approximately five days in space are astronauts Loren J. Shriver, Charles F. Bolden, Jr., Bruce McCandless, II, Kathryn D. Sullivan, and Steven A. Hawley.