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cosmological constant

   Also found in: Encyclopedia, Wikipedia 0.17 sec.
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Noun1.cosmological constant - an arbitrary constant in the equations of general relativity theory
constant - a number representing a quantity assumed to have a fixed value in a specified mathematical context; "the velocity of light is a constant"


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If so, dark energy would resemble the cosmological constant, which Albert Einstein conceived shortly after he developed his theory of gravitation more than 90 years ago.
Dark fingerprints: hubble sheds light on cosmic expansion by Cowen, Ron / Science News
The famous scientist came up with the idea when he proposed a theory of gravitation in 1917, but he quickly retracted the part about the cosmological constant.
Supernovas shed light on dark energy by Sohn, Emily / Science News for Kids
Lemaitre solved this problem by expropriating Einstein's cosmological constant.
'A DAY WITHOUT YESTERDAY' - Georges Lemaitre & the Big Bang by Midbon, Mark / Commonweal
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