DiscoverySpace Shuttle Discovery makes its first flight into space on a mission to deploy three commercial communications satellites. Tested on this flight is a huge solar power panel which unfolds vertically from Discovery’s cargo bay, testing technology for space station designs still on the drawing board. Discovery’s crew for this flight consists of Commander Henry Hartsfield, Pilot Michael Coats, mission specialists Judy Resnick, Steven Hawley, Mike Mullane, and payload specialist Charles Walker.