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'Little Bang' triggered Solar System formation

Date- 2nd Oct 09 Source- 'For several decades, scientists have thought that the Solar System formed as a result of a shock wave from an exploding star—a supernova—that triggered the collapse of a dense, dusty gas cloud that contracted to form the Sun and the planets. But detailed models of this formation process have only worked under the simplifying assumption that the temperatures during the violent events remained constant. Now, astrophysicists at the Carnegie Institutions Department of Terrestrial Magnetism (DTM) have shown for the first time that a supernova could indeed have triggered the Solar Systems formation under the more likely conditions of rapid heating and cooling. The results, published in the October 20, 2008, issue of the Astrophysical Journal, have resolved this long-standing debate.' More info-
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