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Hands-On Universe, Lawrence Hall of Science, University of California, Berkeley

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October 2004. ScienceMatters@Berkeley. Supernovas Illuminate Dark Energy.
Einstein called it his biggest blunder. His early equations for general relativity accounted for a strange cosmic antigravity precisely balancing the attractive force of gravity. But after Edwin Hubble discovered that the universe is expanding, Einstein yanked the mysterious force from his equations. Several years ago though, UC Berkeley astronomer Alex Filippenko helped prove that Einstein was right after all. Filippenko is now asking why and how fast, using exploding stars as his cosmic mile markers.
http://sciencematters.berkeley.edu/archives/volume1/issue5/story1.php

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Lawrence Hall of Science | © Wednesday, 07-Jan-2009 18:51:38 PST Regents of the University of California | Updated Tuesday, 19-Oct-2004 09:29:49 PDT