According to the most widely held astronomical model (the nebular hypothesis), new stars are born from massive clouds of dust and gas (aka a nebula) that experience gravitational collapse. The remaining dust and gas form a protoplanetary disk that encircles the new star, which slowly accretes to form systems of planets.
According to the most widely held astronomical model (the nebular hypothesis), new stars are born from massive clouds of dust and gas (aka a nebula) that experience gravitational collapse. The remaining dust and gas form a protoplanetary disk that encircles the new star, which slowly accretes to form systems of planets.
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