planetesimal hypothesis

English Thesaurus

1. (cosmology) the theory that the solar system was formed by the gravitational accumulation of planetesimals (noun.cognition)

hypernym	:	scientific theory,
definition	:	a theory that explains scientific observations (noun.cognition)

domain category	:	cosmogeny, cosmogony, cosmology,
definition	:	the branch of astrophysics that studies the origin and evolution and structure of the universe (noun.cognition)