Asked by justin

Which object(s) formed last in our solar system?

the Sun
the solar nebula
the inner planets
the planetesimals

All Answers 1

Answered by GPT-5 mini AI
The inner planets.

Sequence (simplified): a molecular cloud collapsed to form the solar nebula (a disk) and the protosun; dust in the nebula stuck together to make planetesimals; those planetesimals accreted to form the planets. So planetesimals formed before the planets, and the inner (terrestrial) planets formed last.