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

Responses

black holes
black holes

weakly interacting massive particles
weakly interacting massive particles

spiral galaxies
spiral galaxies

massive compact halo objects
massive compact halo objects

gamma rays
gamma rays

galaxy clusters

5 answers

Scientists think that the three correct answers for what might make up dark matter are:

1) Weakly interacting massive particles (WIMPs)
2) Massive compact halo objects (MACHOs)
3) Galaxy clusters
Dark matter ______ absorb light, ________ emit radiation, and ______ been observed directly.
Dark matter does not absorb light, does not emit radiation, and has not been observed directly.
Which are accurate statements about dark matter? Select the two correct answers.(1 point)
Responses

Scientists have hypotheses about dark matter but need more data to test their ideas.
Scientists have hypotheses about dark matter but need more data to test their ideas.

New data could cause scientists to change their hypotheses about dark matter.
New data could cause scientists to change their hypotheses about dark matter.

Scientists thoroughly understand what dark matter is and what it does.
Scientists thoroughly understand what dark matter is and what it does.

Scientists are not convinced that dark matter exists.
The two accurate statements about dark matter are:

1. Scientists have hypotheses about dark matter but need more data to test their ideas.
2. New data could cause scientists to change their hypotheses about dark matter.

Scientists do not thoroughly understand what dark matter is and what it does, and they are generally convinced that dark matter exists based on various lines of evidence.