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What star will be the nearest supernova?

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Uploaded on Jul 13, 2008

During my weekly live video chat, I was asked what the nearest star is that can explode as a supernova.

Some notes: the image of Spica is used under the Creative Commons license, and is from fdecomite's Flickr set (http://www.flickr.com/photos/fdecomit... ). The awesome white dwarf illustration is from my friend the artist David Hardy (http://www.jb.man.ac.uk/news/rsoph/ ) and PPARC (http://www.pparc.ac.uk/ ), who gave me permission to use that in my book, so hopefully he won't mind if I plug him here.

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