Looks scary and devoid of any possibility of life. But this is our home, the Earth at the beginning of its existence, 4.6 billion years ago! And its formation and the formation of the Moon remains a mystery. But today, we will tell you about the theories that scientists suggested. You will learn how planets so different from each other form from the same material; what planet crashed into the Earth in the past; how much water there is on our planet, and where it came from. And finally, we will t