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Hubble is the only telescope designed to be serviced in space by astronauts. After launch by Space Shuttle Discovery in 1990, four subsequent Space Shuttle missions repaired, upgraded, and replaced systems on the telescope. A fifth mission was canceled on safety grounds following the Columbia disaster (2003).
This NASA photo shows the Hubble Space Telescope in May 2009 as Atlantis astronauts release it into space after its fifth and final overhaul. Hubble launched into space on April 24, 1990 and celebrated its 20th birthday in 2010.Credit: NASA.he Hubble is the first telescope specifically designed to be repaired in space by astronauts, while other space telescopes cannot be serviced at all. NASA scientists estimate that the telescope will only be able to keep taking pictures for five more years.