Assertion: terrestrial planet's moon | /r/CapableOf | heat a magma ocean
Facets:
value: rapidly
type: MANNER
Source sentences:
text: 3.9 Ga. The Moon formed by accretion of material blasted from Earth by a giant impact about 4.53 Ga, and it rapidly heated and melted forming a magma ocean, which crystallized by 4.5 Ga producing the anorthositic lunar highlands crust.