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- A Supernova Cocoon Breakthrough
Observations with NASA's Chandra X-ray Observatory have provided the first X-ray evidence of a supernova shock wave breaking through a cocoon of gas surrounding the star that exploded. This discovery may help astronomers understand why some supernovas are much more powerful than others. On Nov. 3, 2010, a supernova was discovered in the galaxy UGC 5189A, located about 160 million light years away. Using data from the All Sky Automated Survey telescope in Hawaii taken earlier, astronomers determined this supernova exploded in early October 2010 (in Earth's time-frame). This composite image of UGC 5189A shows X-ray data from Chandra in purple and optical data from Hubble Space Telescope in red, green and blue. SN 2010jl is the very bright X-ray source near the top of the galaxy. A team of researchers used Chandra to observe this supernova in December 2010 and again in October 2011. The supernova was one of the most luminous that has ever been detected in X-rays. The results of these observations were published in a paper that appeared in the May 1, 2012 issue of The Astrophysical Journal Letters. Credits: X-ray: NASA/CXC/Royal Military College of Canada/P.Chandra et al); Optical: NASA/STScI
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Daily Archives: May 25, 2008
Memorial Day 2008 – Other’s Words (III)
I received this email this morning: A Small Town’s Remembrance Echoes the Nation Each year a sign appears on the Village Green in Lake Bluff — a small but charming Midwest community with a New England-look, bordering on the shores … Continue reading
Posted in Heroes, Holidays, Uncategorized
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Memorial Day 2008 – Other’s Words (II)
Aw, hell. I just keep running across this stuff. Now, I get to steer you over to one of Raven’s posts. Simple, eloquent and concise. Enjoy it here.
Posted in Heroes, Holidays
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Memorial Day 2008 – Other’s Words (I)
As is typical, I find others have more to say on this subject and are more eloquent in doing so than I can hope to be. Over at Blackfive they have several great posts on this topic. I would like … Continue reading
Posted in Heroes, Holidays
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Missing
Sorry everyone – Life has gotten in the way of posting recently. Work, kids, all that stuff. I hope to fix that soon, in the interim I’ll throw some lighter stuff up here over the next couple of days. Enjoy!
Posted in Admin
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