NASA said Tuesday it will launch a final space shuttle mission to keep the aging, trailblazing Hubble Space Telescope in orbit and operational. The decision, announced by the chief of the US space agency, Michael Griffin, followed a review of safety concerns and appeals from the scientific community to extend the life of the Hubble. Without a repair mission, which will likely be carried out in 2008, the telescope would shut down in 2009 or even earlier.
Since it was launched into orbit 16 years ago, the telescope has helped astrophysicists peer deep into the universe free of the distortions from the Earth's atmosphere.
Orbiting 575 kilometers (360 miles) above the Earth, the Hubble has enabled scientists to better measure the age and origins of the universe, observe distant supernovas, and identify and study bodies in and outside the solar system.
In 2004, it conveyed pictures of the most distant parts of the universe ever observed by visible light, "the deepest portrait of the visible universe ever achieved by humankind," said the Space Telescope Science Institute.
NASA had scheduled a mission for Hubble in 2003, but scrapped it after the Columbia shuttle disintegrated while returning to Earth. The accident raised serious safety questions for the NASA space program, particularly with the shuttle's heat shield. Tuesday's announcement comes after two of the last three shuttle missions were judged a success.
Griffin said the decision to go ahead was taken after a painstaking review of safety issues.
"We're not going to risk a crew in order to do a Hubble mission," he told staff at Goddard Space Center in Maryland outside of Washington.
In 2003 it was thought too dangerous a mission. But with the saftey issues worked out a mission is possible. I'm sure the science community will appeciate Hubble's extention to explore the heavens. Also, it is good news the last three Shuttle missions "were judged a success!" NASA worked the problems out with the tank foam and finish building the ISS.
Here is the crew slated for the mission:
Veteran astronaut Scott D. Altman will command the final space
shuttle mission to Hubble. Navy Reserve Capt. Gregory C. Johnson will
serve as pilot. Mission specialists include veteran spacewalkers John
M. Grunsfeld and Michael J. Massimino and first-time space fliers
Andrew J. Feustel, Michael T. Good and K. Megan McArthur.
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