Formation of the Solar System
Timeline
- ~4.6 billion years ago: A cloud of gas and dust collapsed under gravity, forming the Sun at its centre.
- ~4.6 billion years ago: A rotating protoplanetary disk formed around the young Sun; dust grains collided and accumulated into larger bodies.
- ~4.6 billion years ago: Planetesimals formed through the accretion of dust and rock, eventually becoming the planets.
- ~4.5 billion years ago: The Sun entered its main-sequence phase, beginning the stable hydrogen-fusion stage that continues today.
Happening elsewhere at the time
Nothing found.
Early Formation series
- Formation of the universe
- Formation of the Solar System
- Formation of the Earth