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Old 03-26-2014, 06:09 PM   #18
robkelk
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Join Date: Oct 2007
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Default Re: [IW] Imagining Lucifer-3

Quote:
Originally Posted by Vaevictis Asmadi View Post
What if it was a very nearby supernova, one close enough to sweep earth with plasma waves from the supernova remnant?
You'd still be looking at one hemisphere taking the brunt of the damage, unless the supernova was on a line roughly perpendicular to the Earth's axis.

Consider Beta Hydri. I don't know whether it's a supernova candidate, but Beta Hydri is the closest near-end-of-life star to Earth, slightly over 20ly away. It's close enough to damage the Solar System if it goes nova, although we don't expect it to go nova any time soon - something would have to happen to it. (But in an alternate universe, something could happen to it.) Trouble is, it's almost due south of the South Pole ... so you've got the "one hemisphere only" issue to deal with.
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Rob Kelk
“Every man has a right to his own opinion, but no man has a right to be wrong in his facts.”
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Deming (New Mexico) Headlight, 6 January 1950
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