Which of the following do scientists think might make up dark matter? Select the three correct answers.(2 points)

Responses

spiral galaxies
spiral galaxies

galaxy clusters
galaxy clusters

massive compact halo objects
massive compact halo objects

weakly interacting massive particles
weakly interacting massive particles

gamma rays
gamma rays

black holes
black holes

1 answer

Scientists think that the following three options might make up dark matter:

1. Galaxy clusters: Dark matter could be present in galaxy clusters, which are large collections of galaxies bound together by gravity.

2. Massive compact halo objects: Dark matter could also exist in the form of massive compact halo objects, such as black holes or other dense astronomical objects.

3. Weakly interacting massive particles: One of the leading theories is that dark matter is composed of particles that are weakly interacting and have a large mass. These particles are referred to as weakly interacting massive particles (WIMPs).