Discovery

Discovery was the third American space shuttle to have been put into orbit (on 30 August 1984), after Columbia and Challenger. Its missions included putting Hubble into orbit, a rendezvous with the Mir space station, International Space Station (ISS) assembly and supply missions, and the launch of the Ulysses probe. Like the other shuttles, it has now been retired. Its last flight was on 24 February, 2011.