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dark energy

   Also found in: Acronyms, Encyclopedia, Wikipedia, Hutchinson 0.04 sec.
dark energy
A form of energy hypothesized to reside in the structure of space itself, responsible for the accelerating expansion of the universe. Dark energy theoretically counterbalances the kinetic energy of the universe's expansion, entailing that that the universe has no inherent curvature, as astronomical observations currently suggest. Dark energy appears to account for 73 percent of all the energy and matter in the universe. See also big bang.


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Finally, there is the problem of dark matter and dark energy.
No small matter: is theoretical physics stuck--and should you worry? by Silber, Kenneth / Reason
It would seem difficult to distinguish between the repulsive force that dark energy proposes and the regular gravitational pull of ordinary matter ("Dark Fingerprints: Hubble sheds light on cosmic expansion," SN: 11/18/06, p.
Way outside the box by Shellman, Vern / Science News
Still, astronomers who study dark energy in the universe keep learning new things about it.
Supernovas shed light on dark energy by Sohn, Emily / Science News for Kids
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