About 4.6 billion years ago, the solar system was born from a huge cloud of gases and dust called solar nebula. Under the effect of gravity, this material gradually collapsed on itself, forming in its center the emerging Sun.

Around the young Sun, a disc of dust and gas turned. Small particles gradually assembled to form larger and larger bodies called planetesimaux. Over time, these objects gave birth to the first planets of the solar system.

Rock planets, such as Earth or Mars, formed near the Sun, while gas giants, such as Jupiter and Saturn, developed further in the colder regions of the disk.

The formation of the solar system illustrates the powerful natural forces that shape the Universe and continues to fascinate scientists today.