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spectrum1234
on Jan 27, 2017
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Time-resolved 2M-year-old supernova activity found...
If this is what killed the dinosaurs this seems like really bad news. Being on Mars won't really be putting our eggs in multiple baskets then.
tdy721
on Jan 27, 2017
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The signal is about 800 Million Years Long, it shows a slow seeding of Earth with Fe60. It has nothing to do with dinosaurs.
emiliobumachar
on Jan 27, 2017
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It's too soon to worry about natural events with a timescale of millions of years.
A single million years from now, we'll be either extinct or unimaginably different from today.
tejtm
on Jan 27, 2017
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Dinosaurs died out 65-ish million years ago
petters
on Jan 27, 2017
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Wasn't that much earlier?
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