[DOC] [TLE] Servicing Missions - Hubble Space Telescope [PAR] Shuttle astronauts have visited the Hubble Space Telescope every several years. 
... on Hubble during Servicing Mission 4: Wide Field Camera 3 (WFC3) and the 
Cosmic ... The problem was fixed by switching to a backup system, but NASA was 
... Astronauts replaced all of Hubble's batteries, which were 18 years old, with... [DOC] [TLE] Hubble Space Telescope - Wikipedia [PAR] The Hubble Space Telescope (HST) is a space telescope that was launched into 
low Earth ... After launch by Space Shuttle Discovery in 1990, four subsequent 
Space ... in 1968 until 1972, well beyond its original planned lifetime of one year. 
... a mirror 3 m in diameter, known provisionally as the Large Orbiting Telescope 
or... [DOC] [TLE] The Hubble Space Telescope Servicing Mission [PAR] Aug 8, 1995 ... Deployed in the Spring of 1990 with the express mission of addressing ... Soon 
the Hubble Space Telescope and NASA itself were the ... Photo of astronauts 
servicing the Hubble in the shuttle bay with the ..... The heart of the instrument, 
either the primary or the secondary mirror, or both (it would later turn... [DOC] [TLE] Hubble Space Telescope - Friends and Partners [PAR] The keys to Hubble's power are its operation in space, far above the ... While the 
launch on the Space Shuttle Discovery more than 3 years ago was flawless, 
Hubble was not. Two months after HST was deployed into orbit 370 miles (595.5 
km) high, Hubble produced ... The telescope mirror itself cannot be fixed or 
changed. [DOC] [TLE] Hubble Space Telescope: Pictures, Facts & History - Space.com [PAR] Apr 24, 2013 ... Since launch in 1990, the Hubble Space Telescope (HST) has provided ... Below 
we explore the history of the telescope and its discoveries, plus ... It took three 
years before NASA could mount a repair mission. On Decc. 2, 1993, the Space 
Shuttle Endeavor ferried a crew of seven to fix Hubble during five... [DOC] [TLE] Saving Hubble: Astronauts Recall 1st Space Telescope Repair ... [PAR] Dec 2, 2013 ... ... the space shuttle mission that famously repaired the Hubble Space ... Saving 
Hubble: Astronauts Recall 1st Space Telescope Repair Mission 20 Years Ago ... 
fifth and final spacewalk to fix Hubble during the shuttle Endeavour's ... that a slip-
up during Hubble's construction phase left its main mirror flawed... [DOC] [TLE] Hubble Space Telescope marks 25 years in orbit  Spaceflight Now [PAR] Apr 21, 2015 ... Astronauts aboard space shuttle Atlantis captured this view of the repaired ... its 
launch 25 years ago April 24, the discovery of its famously flawed mirror, ... these 
heroes, risked their lives to go fix it and then it's a huge success. .... So Bruce 
and I only saw Hubble deploy on video like all the rest of you guys. [DOC] [TLE] 'You and the Rest': Twenty Years Since NASA's Dramatic Hubble ... [PAR] Dec 7, 2013 ... The size of the mirror was reduced from 10 feet (3 meters) to 8 feet (2.4 ... In 1979
, the construction of the Perkin-Elmer mirror began and was completed two years 
later, ... arm. Since its inaugural deployment from the shuttle in April 1990, the ..... 
In May 1993, the Task Force on the Hubble Space Telescope... [DOC] [TLE] Hubble Space Telescope marks 25 years in orbit - CBS News [PAR] Apr 20, 2015 ... The Hubble Space Telescope as it was last seen after a final shuttle servicing ... 
25 years ago April 24, the discovery of its famously flawed mirror, the ... these 
heroes, risked their lives to go fix it and then it's a huge success. .... "And then 
some years later, she got her Ph.D. in astrophysics using Hubble data. [DOC] [TLE] STS-61 - Company Seven [PAR] Dec 1, 1993 ... servicing of the Hubble Space Telescope so its scientific deep space ... The 
December flight of Endeavour on Space Shuttle Mission STS-61 ..... two orbits 
later ... While the launch on the Space Shuttle Discovery more than 3 years ago ... 
the HST fixed on its targets, and

Question: The Hubble Space Telescope was deployed by this space shuttle; 3 years later the Endeavour fixed its mirror
Answer: Discovery