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14 July, 20:08

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

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Answers (1)
  1. 14 July, 20:30
    0
    Well, one light year is the distance in which light travels in one year. So, if a star is 10 light-years away from us, and it explodes today, we will know that it exploded 10 years from today.
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