dark matter
mysterious non-luminous matter (and/or radiation) comprising most of the matter in our observable universe
hot dark matter
dark matter consisting of particles that travel with ultrarelativistic velocities
warm dark matter
hypothesized form of dark matter that has properties intermediate between those of hot dark matter and cold dark matter
scalar field dark matter
classical, minimally coupled, scalar field postulated to account for the inferred dark matter
light dark matter
dark matter weakly interacting massive particles candidates with masses less than 1 GeV
cold dark matter
dark matter that moves slowly compared to the speed of light and interacts very weakly with ordinary matter and electromagnetic radiation