Tuesday, November 29, 2011

NASA Fermi Reveals a Cosmic-ray Cocoon in Cygnus - YouTube

Tour the Cygnus X star factory. This video opens with wide optical and infrared images of the constellation Cygnus, then zooms into the Cygnus X region using radio, infrared and gamma-ray images. Fermi LAT shows that gamma rays fill cavities in the star-forming clouds. The emission occurs when fast-moving cosmic rays strike hot gas and starlight.

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