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(Astronomy) Stars: TV Drama in the Sky
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adedios
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Joined: 06 Jul 2005
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Location: Angel C. de Dios

PostPosted: Thu Dec 20, 2007 9:30 pm    Post subject: Litterbugs of the Universe Busted Reply with quote

Litterbugs of the Universe Busted
By Dave Mosher, Staff Writer

posted: 20 December 2007 01:01 pm ET

Dust littered the early universe and seeded the formation of rocky planets such as the Earth. But where, exactly, most of the celestial grit came from was uncertain until now.

Astronomers have found 10,000 Earth masses worth of dust surrounding Cassiopeia A, the remnants of a supernova about 11,000 light-years away from our planet. The NASA Spitzer Space Telescope observations show silicates, carbon, iron oxide, aluminum oxide and other dust-forming chemicals around the blown-out star.

For the full article:

http://www.livescience.com/spa.....-dust.html
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adedios
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Joined: 06 Jul 2005
Posts: 5060
Location: Angel C. de Dios

PostPosted: Sat Dec 29, 2007 9:19 am    Post subject: Jets Spiral in 'Reverse Whirlpool' from Star Reply with quote

Jets Spiral in 'Reverse Whirlpool' from Star
By Jeanna Bryner, Staff Writer

posted: 28 December 2007 03:32 pm ET

Astronomers have observed for the first time a jet of matter spiraling outward from an infant star, as if a lengthy strand of curly pasta.


The enormous jet, which shoots out in two directions, is rocketing material away from the so-called protostar and into interstellar space at more than "supersonic speeds." From end to end, the bipolar jet extends 16,000 astronomical units (AU), where 1 AU is the average distance between the Earth and sun.

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http://www.livescience.com/spa.....-jets.html
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adedios
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Joined: 06 Jul 2005
Posts: 5060
Location: Angel C. de Dios

PostPosted: Thu Mar 20, 2008 2:14 pm    Post subject: Ready, Set, Supernova Reply with quote

Ready, Set, Supernova
Emily Sohn

March 19, 2008

Stars explode all the time in outer space, but astronomers usually see the explosions only after they've happened. One type of stellar explosion, called a supernova, can glow for days or even months. Now, for the first time, scientists have actually caught a star in the act of going supernova.

For the full article:

http://www.sciencenewsforkids....../Note2.asp
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