Assertion: dark matter's gravity | /r/HasProperty | dependent
Facets:
value: upon the mass of the universe
type: OTHER
Source sentences:
text: Gravity will ultimately determine the fate of the expansion, and gravity is dependent upon the mass of the universe; specifically, there is a critical density of mass in the universe of 10-29 g/cm3 (equivalent to a few hydrogen atoms in a phone booth) that determines what might happen.