On January 9, astronomers used a NASA X-ray satellite to spy on a star already well into its death throes, when another star in the same galaxy started to explode. The outburst was 100 billion times brighter than Earth's sun.
Less than 1 percent of the stars in the universe will die in a supernova
Chances of simultaneous supernovae so close to each other around 1 in 10,000
http://www.cnn.com/2008/TECH/space/05/21/star.explosion.ap/
Thursday, June 26, 2008
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