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Monday 22 October 2012

STUNNING NASA VIDEO SHOWING A GALAXY'S LIFE HISTORY


New Picture 29
NASA | Computer Model Shows a Disk Galaxy's Life History
By
NASA Explorer, 19 October 2012.

This cosmological simulation follows the development of a single disk galaxy over about 13.5 billion years, from shortly after the Big Bang to the present time. Colours indicate old stars (red), young stars (white and bright blue) and the distribution of gas density (pale blue); the view is 300,000 light-years across. The simulation ran on the Pleiades supercomputer at NASA's Ames Research Centre in Moffett Field, Calif., and required about 1 million CPU hours. It assumes a universe dominated by dark energy and dark matter.

Credit: F. Governato and T. Quinn (Univ. of Washington), A. Brooks (Univ. of Wisconsin, Madison), and J. Wadsley (McMaster Univ.).


Top image: Screen capture from video

[Source: NASA Explorer via YouTube.]


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