Assertion: moon | /r/CapableOf | form after collision
Facets:
value: according to the giant impact hypothesis
type: OTHER
value: between two co-orbital objects
type: LOCATION
Source sentences:
text: According to the giant impact hypothesis, the Moon formed after a collision between two co-orbital objects: Theia, thought to have had about 10% of the mass of Earth (about as massive as Mars), and the proto-Earth—whose orbits were perturbed by other planets, bringing Theia out of its trojan position and causing the collision.