Question

what is dark matter?​

Answer 1

•Dark matter

Dark matter is a hypothetical form of matter thought to account for approximately 85% of the matter in the universe and about 27% of its total mass–energy density or about 2.241×10−27 kg/m3.Most dark matter is thought to be non-baryonic in nature; it may be composed of some as-yet undiscovered subatomic particles.