by Joseph Milanese on October 8th, 2004

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If a star is light years away so it takes years for its light to reach us, can scientists tell if the star is actually still there and that it hasn't gone supernova or died out?

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by Exachix on November 14th, 2005
No, until the light from the star reached us to tell us that it went nova or died (or changed etc)
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If a star is light years away so it takes years for its light to reach us, can scientists tell if the star is actually still there and that it hasn't gone supernova or died out?

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If a star is light years away so it takes years for its light to reach us, can scientists tell if the star is actually still there and that it hasn't gone supernova or died out?

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