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Q&A How close must a supernova be to severely harm the Earth?

I did a little looking and it appears stars outside of 10 parsec/33 ly will have very little effect on the Earth. What it did say was that inside that range the gamma rays would affect our ozone l...

2 answers  ·  posted 9y ago by bowlturner‭  ·  last activity 4y ago by bowlturner‭

Question stars natural-disasters supernova