In general in the Solar System , planetary formation is thought to have occurred via a process comparable to the long-standing nebular hypothesis : a cloud of interstellar dust and gas collapsed under the influence of gravity to form a rotating disk of material that then further condensed to form the Sun and planets .
In general , planets formed by the long-standing nebular hypothesis : a cloud of interstellar dust and gas collapsed under the influence of gravity to form a rotating disk of material that then further condensed to form the Sun and planets .