Our planet has already lived more than half of its due date. During this time, incredible adventures took place with her. It turned into a huge space snowball, a ring of stone dust circled around it, rain from asteroids rained, the atmosphere and composition of the ocean changed several times. And the most amazing thing is that life appeared on it. In the beginning, Earth was a planet of archaea and bacteria. Then it became a planet of mollusks, algae and fish. Then St. John's worms settled on it. When they disappeared, it was the turn of the dinosaurs. Then animals spread, including a man who mastered all the elements and even managed to leave the planet and go into space. And what will happen next?