Assertion: nonbaryonic dark matter | /r/HasProperty | neutrino
Facets:
Source sentences:
text: The nonbaryonic dark matter includes neutrinos, which were discovered to have mass in recent years, and may also include hypothetical entities such as axions, or supersymmetric particles.
text: The nonbaryonic dark matter includes neutrinos, and possibly hypothetical entities such as axions, or supersymmetry|supersymmetric particles.