In the new book, Chevostik and Uncle Kuzya go to the observatory! Here they will have a fascinating acquaintance with the celestial bodies that decorate our night sky. Together with your favorite characters, you will look at the Moon and the planets of the solar system, distant stars and comets through a telescope. Why do we often see only the golden crescent of the month if the Moon is round? How do planets differ from stars and where do they get their names? What is a light year and why is one Earth year equal to four Mercury years? Which planet in the solar system is the largest and which is the most beautiful? Is it possible to see stars during the day and where does a comet’s tail come from? What are orbit and satellite, meteors and eclipse? As always, Uncle Kuzi has answers to the most curious children's questions and an interesting story about astronomy. The book is intended for children of primary school age.