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re: What Did Hubble See on Your Birthday?
Posted on 5/28/20 at 8:27 pm to Carolina_Girl
Posted on 5/28/20 at 8:27 pm to Carolina_Girl
quote:
Hubble Ultra Deep Field
This photo led to a re-evaluation of the size of the visible universe. The previous estimate was that there are 100 billion galaxies between us and the cosmic horizon. Now we know there are 2 trillion galaxies sending their light our way. This is an order of magnitude change.
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