Man began to observe the sky at the dawn of civilization: the Babylonian priests predicted phenomena by the movement of the planets, and the Greeks applied natural science and geometry to their observations - so the science of astronomy developed step by step. In order to understand how the world outside the Earth works, scientists had to develop special equipment, build the most important physical theories and carry out complex mathematical calculations. This is how the planets of the Solar System were described, many satellites were launched, exoplanets were discovered, the presence of gravitational waves was established, and a photo of a black hole was recently obtained.You will learn about the history of science, great scientists and discoverers, as well as what we know about the universe today, from this book.