Supercomputers offer new explanation of Tunguska disaster

The stunning amount of forest devastation at Tunguska, a century ago in Siberia, may have been caused by an asteroid only a fraction as large as previously published estimates, Sandia supercomputer simulations suggest.

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<p><a href="http://www.physorg.com/news117204371.html">Supercomputers offer new explanation of Tunguska disaster</a></p> <p>The stunning amount of forest devastation at Tunguska, a century ago in Siberia, may have been caused by an asteroid only a fraction as large as previously published estimates, Sandia supercomputer simulations suggest. </p>