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Forum: Cosmic Rays

Description:	Cosmic rays are very high-energy particles, mainly originating outside the Solar System. They may produce showers of secondary particles that penetrate and impact the Earth's atmosphere and sometimes even reach the surface. Composed primarily of high-energy protons and atomic nuclei, they are of mysterious origin. Data from the Fermi space telescope have been interpreted as evidence that a significant fraction of primary cosmic rays originate from the supernovae of massive stars.
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Thread	Last Post		Posts	Views
Scientists explain how memories stick together By Sadia Khawar.	4/18/2014 10:48:32 AM By Sadia Khawar.		3	926
Share Your Knowledge By Sadia Khawar. Page: 1, 2, 3	9/20/2013 9:16:45 AM By Sadia Khawar.		13	4391

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