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Gamma Rays Defined

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Off-site Gamma Rays Links, User Submitted

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Mon Nov 10

• Chandra Press Room :: Searching for Primordial Antimatter :: 30 October 08: According to the Big Bang theory the new Universe contained a lot of anti-matter and slightly more matter (1 billionth) . After mutual annihilated matter was all that survived; however, in the first fraction of a second the Universe expanded so quickly that some anti-matter may have been moved out of range of matter and; thus, survives to this day. Trace amounts of antimatter may be produced by powerful phenomena such as relativistic jets powered by black holes and pulsars, but no evidence has yet been found for primordial ant-imatter produced by the Big Bang. Some might be separated on smaller scales, such as those of superclusters or clusters in which case collisions between two galaxy clusters, the largest gravitationall y-bound structures in the Universe. X-ray emission shows how much hot gas is involved in such a collision. If some of the gas from either cluster has particles of antimatter, then there will be annihilation and the X-rays will be accompanied by gamma rays.

Mon Sep 15

• Nuclear materials detection safeguards ports: Since Sept. 11, 2001, concerns have been raised about how best to prevent dangerous materials or contraband items from being smuggled into the country alongside the millions of imported goods. In particular, homeland security and law enforcement professionals are most concerned about the potential for illicit radiological materials to make their way into the country through shipping ports.

Mon Sep 1

• Popcorn using cell phones: Electromagneti c waves from cell phones cook popcorn. Use as discussion for electromagneti c spectrum.

Tue Aug 26

• NASA - First Light for the Fermi Space Telescope

Sat May 3

• Earth seen in gamma rays [2]
• Earth seen in gamma rays

Mon Apr 21

• Obama Warns of Mass Death if Race Goes to Convention

Mon Dec 24

• LIGO Sheds Light on Cosmic Event

Thu Dec 20

• Blast From Empty Space Poses Mystery -- Discovery News

Tue Dec 18

• Intergalactic 'Shot In The Dark' Shocks Astronomers

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Off-site Gamma Rays Research Links

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