Assertion: moon | /r/AtLocation | equilibrium
Facets:
value: no longer
type: TEMPORAL
Source sentences:
text: The five major moons are ellipsoidal, indicating that they reached hydrostatic equilibrium at some point in their past (and may still be in equilibrium), and four of them show signs of internally driven processes such as canyon formation and volcanism on their surfaces.
text: Nineteen moons have an equilibrium shape from having relaxed under their own gravity at some point in their history, though some have since frozen solid and are no longer in equilibrium.