Spitzer Liquid He |
Spitzer Liquid He |
Oct 14 2005, 05:01 AM
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#1
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Member Group: Members Posts: 356 Joined: 12-March 05 Member No.: 190 |
How much cryogen does Spitzer have remaining in its dewar? Do they know, or are they just waiting to see a temperature rise after complete boil-off? Can't find much info on the website.
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Mar 22 2006, 12:33 PM
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#2
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Senior Member Group: Members Posts: 2454 Joined: 8-July 05 From: NGC 5907 Member No.: 430 |
TIME AND SPACE
- Spitzer Sees Back 9 Billion Years http://www.spacedaily.com/reports/Spitzer_...lion_Years.html Pasadena CA (SPX) Mar 21, 2006 - Astronomers have captured an image of the most distant cluster of galaxies ever seen, located about 9 billion light-years away from Earth – and photographed at a stage when the universe was only about one-third of its present age. -------------------- "After having some business dealings with men, I am occasionally chagrined,
and feel as if I had done some wrong, and it is hard to forget the ugly circumstance. I see that such intercourse long continued would make one thoroughly prosaic, hard, and coarse. But the longest intercourse with Nature, though in her rudest moods, does not thus harden and make coarse. A hard, sensible man whom we liken to a rock is indeed much harder than a rock. From hard, coarse, insensible men with whom I have no sympathy, I go to commune with the rocks, whose hearts are comparatively soft." - Henry David Thoreau, November 15, 1853 |
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