Scientists think that neutrinos cannot be the dominant form of dark matter in the universe.Why?
A) Neutrinos are an example of hot dark matter that could form large superclusters but not smaller structures.
B) Neutrinos interact too strongly with ordinary matter.
C) Neutrinos would decay over time and disappear, causing galaxies to fall apart.
D) Neutrinos would not gravitationally lens background galaxies.
E) Neutrinos are charged particles.

Question

Quizplus · Accepted Answer

Neutrinos are considered hot dark matter because they move at relativistic speeds. This means they cannot clump together to form smaller structures like galaxies, which is inconsistent with observations of the universe's structure.

Scientists Think That Neutrinos Cannot Be the Dominant Form of Dark