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Sunday 21 May 2017

Supernova and Mass Extinctions

Supernova and Mass Extinctions

Distance at which supernova would spark mass extinctions on Earth, University of Kansas, May 11, 2017
https://www.sciencedaily.com/releases/2017/05/170511115935.htm

http://news.ku.edu/2017/05/08/research-increases-distance-which-supernova-would-spark-mass-extinctions-earth

What’s a safe distance between us and a supernova?
by EarthSky, May 7, 2017
http://earthsky.org/astronomy-essentials/supernove-distance

Yours,

Paul H.

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