Posted: December 23, 1999
During the second spacewalk of mission STS-103, astronauts successfully replaced the Hubble Space Telescope's main computer and installed an improved fine guidance sensor used to track stars for accurate pointing of the telescope. Images from NASA TV.
Flight data file
Vehicle: Discovery (OV-103)
Payload: HST Servicing Mission-3A
Launch date: Dec. 20, 1999
Launch window: 0050-0132 GMT (1950-2032 EST Dec. 19)
Launch site: LC-39B, Kennedy Space Center, Fla.
Landing date: Dec. 27, 1999
Landing time: 2224 GMT (1724 EST)
Landing site: SLF, Kennedy Space Center, Fla.
First spacewalk - views from Wednesday's spacewalk.
Retrieval - images from Tuesday's rendezvous and capture of Hubble.
Launch - images from Sunday's countdown and launch.
British born astronaut Michael Foale removes Hubble's old computer during the second spacewalk of the mission.
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Space shuttle Discovery launches on STS-103 for the third mission to service the Hubble Space Telescope.
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Discovery's solid rocket boosters peel away from the shuttle's external fuel tank just over two minutes into flight.
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The STS-103 crew depart their crew quarters on Sunday afternoon headed for launch pad 39B.
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NASA Launch Director Dave King announces that the first launch attempt on Friday was scrubbed because of bad weather.
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