Library of the Nine Planets - Jupiter

Product Description

If you look up into a clear night sky, you can see Jupiter. After Earth's moon, Venus, and sometimes Mars, it is the brightest object in the heavens. It looks like a very bright star but doesn't twinkle like a star. It has a bright, steady glow. Because Jupiter can be seen from Earth, people have observed it for thousands of years. Ancient civilizations had no way of knowing that they were really looking at a planet, but they knew that it was different from the stars.