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A comment on TRAPPIST-1 Is Older Than Our Solar System. Parent comment

Re:TRAPPIST-1 Is Older Than Our Solar System by therein on Saturday August 12, 2017 @06:20PM (#15000340)
What kind of unique signs would a nuclear explosion create? Doesn't nuclear fission occur naturally?
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Re:TRAPPIST-1 Is Older Than Our Solar System by kobeya on Saturday August 12, 2017 @07:32PM (#15000649)
Not really? Only in very rare exceptions. At least if you're talking about chain reaction fission.
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