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  • 5 months later...
  • Platinum Contributing Member

Just hard to fathom how large the Universe is.   The light we see from stars tonight happened there millions of years ago.  

The Andromeda Galaxy is the most distant object readily visible to the naked eye. It is 2.5 million light years away. The light from it that we see right now is 2.5 million years old. We are therefore seeing the Andromeda Galaxy as it was at a time long before modern humans existed! The closest human relatives alive at the time were members of the genus Australopithecus.

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  • 4 months later...

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