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Synopsis
Seymour Simon has written more than 150 award-winning science books about animals, anatomy, astronomy, earth science, and vehicles!Named after the Roman god of war, Mars has fascinated people for thousands of years. Did you know that . . .
A Martian year is 687 Earth days, almost twice as long as a year on Earth.
Mars' s biggest valley, Valles Marineris, is four times as deep as the Grand Canyon!
Scientists think that Mars, now rocky and barren, once had an ocean, rivers, and a thicker atmosphere.
The first robot ever to explore the surface of Mars is only about the size of a child' s toy wagon.
Book Details
Published
January 1, 2003
Publisher
Scholastic
Pages
15
ISBN
9780439494625