A Brief History of the Hubble Space Telescope
Roger Ressmeyer / Corbis
A Closer Look
Atlantis' astronauts will install a new "wide-field planetary camera" during their 11-day maintenance-and-repair mission, the fifth to the telescope. With the 2003 Columbia tragedy in mind, NASA will have the shuttle Endeavour prepared to rescue the Atlantis crew from space on a week's notice should any mishaps occur.
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