noun
Physics term for the unknown energy driving the accelerating expansion of the universe. Often contrasted with ダークマター (dark matter).
See also: ダークエネルギー
The accelerating expansion of the universe is thought to be caused by dark energy.
暗黒エネルギーは全宇宙のエネルギーの約7割を占めると推定されている。
Dark energy is estimated to account for about 70% of the total energy in the universe.