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View Full Version : FUSE Satellite is Working Again



Fraser
2006-Feb-28, 04:42 AM
SUMMARY: NASA's Far Ultraviolet Spectroscopic Explorer (FUSE) astronomy satellite has returned to service after being offline for about 10 months. 3 of the spacecraft's 4 reaction wheels had failed; these allow it to point at precise locations in the sky. Even though it only has a single reaction wheel, engineers were able to create a technique which allows it to orient itself. FUSE has already had its original 3-year mission extended twice, so any further science it can gather is a bonus.

View full article (http://www.universetoday.com/am/publish/fuse_returns_to_operation.html)
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Fr. Wayne
2006-Feb-28, 02:03 PM
The detection of x-ray phenomenon has proven time and again that our ability to detect early signs of changes taking place both in our neighborhood and across the Universe depends on an array of instruments which can monitor the invisible spectrum of light we call the x-rays. Hats off to Nasa scientists for deploying creative ways to extend the lifespan of these instruments amid a time of fierce competitve bidding over budget expenses.

Jerry
2006-Feb-28, 04:37 PM
Reaction wheel problems have hindered too many programs, including Cassini and especially Haybusa. Are the lessons learned being distributed?

ToSeek
2006-Mar-02, 04:30 PM
Reaction wheels are the most significant moving parts in a spacecraft and probably therefore the most likely source of problems.