About five billion years ago, in place of the Sun and planets, there was an unlimited cloud of gas and cosmic dust. This cloud began to shrink in some places, forming a core that began to rotate, capturing the surrounding gas and cosmic dust and thus becoming more and more dense.

The Sun was formed from the largest central core, and planets from smaller smaller nuclei. Our Earth is one of them. At first, all the planets were as red-hot as the sun. But then the boiling lava, which covered their surface, cooled down and became solid. The crust hardened, but gas and fire burst from its cracks.

Cooling down, the Earth decreased in size. Her bark began to bend. The folds of the oldest rocks became the first mountains.

Crowded sky

The red-hot Earth expelled dense jets of water vapor, which formed huge clusters of clouds. Rain poured out of the clouds, but the water falling on the hot soil again evaporated and returned to heaven. At that time, even a drop of water could not exist on Earth.

First seas and rivers

As a result of a great flood, the first seas appeared on our planet. The hollows between the mountains were filled with water falling from the sky. For a long time, rivers laid their course in the valleys. Rainwater collected in the hollows. So the seas and oceans arose.

Big rain

Finally, the moment came when the rocks cooled down and stopped evaporating the water falling on them. Rain moisture began to remain in the ground.It rained for a very, very long time, centuries, because the sky had to be free of all the water vapor that had accumulated for millions of years.