Sunday, November 04, 2012

Ancient universe starlight

NASA’S Fermi measures cosmic ‘fog’ produced by ancient starlight
November 2, 2012

nasa_fermi_cosmic_fog Astronomers using data from NASA‘s Fermi Gamma-ray Space Telescope have made the most accurate measurement of starlight in the universe and used it to establish the total amount of light from all of the stars that have ever shone, accomplishing a primary mission goal. “The optical and ultraviolet light from stars continues to travel throughout … more…

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