Word: constantly
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Dates: during 1970-1979
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Huchra and his colleagues conclude that astronomers came up with an incorrect value for Hubble's Constant because they limited their observations to relatively nearby clusters of galaxies--those less than 70 million light years away...
When Huchra, Aaronson and Mould calculated Hubble's Constant for these relatively nearby clusters, they also found a value comparable to old determinations...
...clusters outside our supercluster--as far as 200 million light years away--Huchra determined a value for Hubble's Constant twice as large...
Those conclusions, among others, stem from several years of investigation into Hubble's constant, one of the most important figures used to determine the properties and dimensions of the universe...
...Hubble's Constant, named after the late astronomer Edwin P. Hubble, sets the ratio of the velocity of objects to their distance. Equations for determining the size, age and density of the universe depend critically on plugging in Hubble's Constant...