One unusual aspect of dark energy is
A) its pushes outward on everything in the universe instead of pulling inward as gravity ordinarily does.
B) it's made of a material that has not yet been observed in our laboratories.
C) Both of the above.
D) it exerts a new kind of fundamental force, never observed before.
E) it exerts no gravitational force.

Question

Quizplus · Accepted Answer

Dark energy is thought to cause the accelerated expansion of the universe, acting as a repulsive force, unlike gravity. It is also not composed of any known particles observed in laboratories.

One Unusual Aspect of Dark Energy Is