People have been living in space for a long time, in a big House called planet Earth, but only six decades ago we became the real owners of this House, because we got the opportunity to go out and look at it from the outside, from the top point. We have acquired an ideal instrument and unlimited possibilities for observing and studying the Earth. How many amazing discoveries have been made since then thanks to the scientific instruments put into orbit. We learned where most of the oxygen we breathe actually comes from, how such powerful and dangerous natural phenomena as typhoons and hurricanes are formed, we looked deep underground and discovered fantastic processes there. And this is only the beginning, only the first steps in the holistic and systematic knowledge of this beautiful and mysterious cosmic object.