Question

Which statements describe dark matter? Check all that apply. It is invisible. It is the same as dark energy. It is well understood by scientists. It does not emit electromagnetic radiation. It can be observed by shifts in red and blue light.

Answer 1

Space that appears empty actually contains dark energy and dark matter.

Dark matter does not emit electromagnetic radiation.

Scientists theorize that dark energy is causing the expansion of the universe to accelerate.

JUST TOOK THE ASSESSMENT!

Answer 2

Dark matter is invisible and does not emit electromagnetic radiation. Dark matter is part of a theory that hypothesis the existence of a counterpart to the particles we know in physics, in order to balance the universe that otherwise would be largely unbalanced right now. However, the theory right now is not yet proven.