Astronomy

Peter Sis grew up in Czechoslovakia when the country was still a satellite of the Soviet Union. He remembers not having enough paper for drawing and only one kind of ink. Once a teacher caught him sketching in his notebook at school. She made him write over every page. In Czechoslovakia, there was not enough of anything, and drawing in a notebook was considered to be very wasteful. There were other sad things about living behind the Iron Curtain. The government controlled what could be said in public and written in books, especially if what was written criticized the people in charge.

Great stars above!

From our place beneath the heavens, the stars seem to be tiny pinpoints of light. People have seen patterns in the stars for thousands of years. In the storytellers' imagination, warriors and princesses, flying horses and laughing coyotes all found their way to the stars. Some soothsayers still tell fortunes based on the mysteries of astrology, or the alignment of the planets.

How do the Sun and the Moon affect the Earth? Without the Sun, the Earth would be a big ball of frozen mud, just another asteroid, drifting in space with no gravity to anchor it here and nothing to give us heat and light. We could not be here without the Sun.