Physics, 20.10.2019 19:00 Machuco127
If a star is 10 light-years away from us and it explodes today, when will we know that it exploded?
today
10 years from today
10 parsecs from today
Answers: 3
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If a star is 10 light-years away from us and it explodes today, when will we know that it exploded?...
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