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Unknown Sources of Super-Energetic Forms of Light Baffle Astronomers

 
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10/20/2011 12:21 PM
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Unknown Sources of Super-Energetic Forms of Light Baffle Astronomers
[link to www.dailygalaxy.com]

Unknown Sources of Super-Energetic Forms of Light Baffle Astronomers



The Fermi Space Telescope has detected 1,873 gamma ray sources in space, and nearly 600 are complete mysteries. Researchers are speculating on the nature of the mystery sources, including the possibility that they are made of dark matter. NASA's Fermi team has recently released the second catalog of gamma ray sources from its satellite's Large Area Telescope and have no idea where nearly one-third of gamma rays originated.

"Fermi sees gamma rays coming from directions in the sky where there are no obvious objects likely to produce gamma rays," said David Thompson, Fermi deputy project scientist, of Goddard Space Flight Center in Maryland.

Gamma rays are a "super-energetic form of light produced by sources such as black holes and massive exploding stars," according to NASA. The Fermi Researchers say two-thirds of the gamma rays come from objects such as pulsars or blazars. The remaining third are a complete mystery right now.

"Some of the mystery sources could be clouds of dark matter, something that's never been seen before," Thompson said.

NASA explains that about “85% of the gravitational mass of the universe is dark matter,” and “the stuff we see makes up the rest.”

“Dark matter is something that pulls on things with the force of its gravity but can't be detected in any other way. It doesn't shine – doesn't emit or scatter light – hence the adjective ‘dark,’ ” NASA writes. "Some researchers believe that when two dark matter antiparticles bump into each other, they will annihilate, producing gamma rays. Concentrated clouds of dark matter could form a gamma ray source at specific wavelengths detectable by Fermi."

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"The love that you withhold is the pain that you carry"

“To live content with small means; to seek elegance rather than luxury, and refinement rather than fashion, to be worthy, not respectable, and wealthy, not rich; to study hard, think quietly, talk gently, act frankly, to listen to stars and birds, to babes and sages, with open heart, to bear all cheerfully, to all bravely await occasions, hurry never. In a word, to let the spiritual unbidden and unconscious grow up through the common. This is to be my symphony.”
.........William Henry Channing





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