Most of the collapsing mass collected in the center, forming the Sun, while the rest flattened into a protoplanetary disk out of which the planets, moons, asteroids, and other small Solar System bodies …

6 days ago · Solar system - Origin, Planets, Formation: As the amount of data on the planets, moons, comets, and asteroids has grown, so too have the problems faced by astronomers in forming …

Mar 12, 2025 · Our solar system includes the Sun, eight planets, five dwarf planets, and hundreds of moons, asteroids, and comets.

The solar system as we know it began life as a vast, swirling cloud of gas and dust, twisting through the universe without direction or form. About 4.6 billion years ago, this gigantic cloud was transformed …

2 days ago · The Nebular Theory is the leading scientific explanation for the formation of our solar system approximately 4.6 billion years ago. This widely accepted model posits that the Sun, planets, …

Dec 8, 2025 · The formation of the Solar System is believed to have begun about 4.6 billion years ago from a giant cloud of gas and dust known as the solar nebula. This cloud collapsed under its own …

All of the main building blocks for life -- carbon, hydrogen, oxygen and nitrogen (CHONs) -- were present in the cloud that collapsed to form our solar system. Ultimately, this concentration of gas and dust …

This illustration shows the steps in the formation of the solar system from the solar nebula. As the nebula shrinks, its rotation causes it to flatten into a disk.

How Was Our Solar System Formed? The Sun and the planets formed together, 4.6 billion years ago, from a cloud of gas and dust called the solar nebula. A shock wave from a nearby supernova …

2 days ago · The Solar system formed through condensation from big clouds of gas and dust called nebulae after a supernova, or the explosion of a large star. Planets move around the Sun in an orbit, …