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Having varied widely over the decades and constantly being narrowed, the Hubble's constant H0 (a measure of the Universe's observed expansion rate) current best estimates revolve around 71 km/s/Mpc (kilometers per second for each megaparsec or about 3.3 million light years away from the Earth). [Beedassy]

 

  Submitted: 2008-11-26 10:39:37;   Last Modified: 2014-08-09 15:26:37.



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