What is "dark energy"?
A) The energy associated with the matter that has fallen into a black hole
B) The matter-energy needed to bridge the gap between the energy we see or infer and the energy needed to make the universe flat
C) The energy associated with "dark matter"
D) The unseen matter-energy needed to make the observed curvature of space spherical (as we believe it should be),whereas the observed matter-energy only makes it hyperbolic

Question

Quizplus · Accepted Answer

Dark energy is the hypothesized form of energy that is believed to be responsible for the accelerating expansion of the universe. It is needed to bridge the gap between the energy we see or infer and the energy needed to make the universe flat.

What Is "Dark Energy