About 4.6 billion years ago, this gigantic cloud was transformed into our Sun. The processes that followed gave rise to the solar system, complete with eight planets, 181 moons, and countless …

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 …

Dec 20, 2020 · The formation of the solar system is a challenging puzzle for modern astronomy and a terrific tale of extreme forces operating over immense timescales. Let's dig in.

Apr 12, 2025 · Dive into solar system formation. Learn how the sun was made and how our planets were born from cosmic dust.

Our Solar System, and all other star systems, form from a collapsing nebula. Often called stellar nurseries, nebulae are the birthplace of stars. They are made up of mostly hydrogen but also contain …

Aug 29, 2022 · It’s got all kinds of planets, moons, asteroids, and comets zipping around our Sun. But how did this busy stellar neighborhood come to be? Our story starts about 4.6 billion years ago, with …

All the planets in our Solar System started out as clouds of gas and dust orbiting a new star—the Sun. Over time, all that gas and dust began to stick together and slowly built up into balls.

4 days ago · The formation of the solar system began with a huge, rotating cloud of dust and gas. This cloud was made of particles like rock, ice, and metals, along with gases such as hydrogen and helium.

In 2007, researchers at the University of California–Davis determined that our Solar System was fully formed at 4.568 billion years ago. They did this by determining the age of stony materials from the …

Nov 27, 2025 · The current approach to the origin of the solar system treats it as part of the general process of star formation. As observational information has steadily increased, the field of plausible …