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Stellar explosion from halfway across the universe was visible to the naked eye

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Light just reaching earth from a stellar explosion that occurred 7.5 billion years ago was so bright that it would have been visible to the naked eye. (www.nasa.gov) 更多...

Karl Lehenbauer
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olddieselguy
olddieselguy 0
Too bad i'm not up in the night. Well maybe i am HEHE, that would be so cool to have seen that.
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