hypernovae

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Do all Stars Eventually Explode?

What’s going to happen to all the stars in the Universe as they get older? Well, just as nothing can live forever, stars can’t live forever also. Why? Because they run on fuel: burning hydrogen into helium, for example. When they run out of fuel, something’s gotta give. Barbara Ryden reminds us of an excellent…

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…