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The Science of the Brightest GRB

Last week, the brightest gamma-ray burst ever was observed. (See here.) I wanted to know what it was that caused this bright explosion that, despite it being at redshift z=0.94 (or about 7.5 billion light years away), it was visible on Earth with the naked eye! Well, a scientific paper was written on the observations…

Brightest thing ever?

Those of you who keep up with your news may have seen this headline on CNN last week: Star Explodes Halfway Across Universe. What they’re talking about is a Gamma-Ray Burst, which was so bright that, despite being 7.5 billion light years (that’s 2.3 Gpc) away, it was still visible on Earth with the naked…