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...Read more
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.
- ISBN10 0613835654
- ISBN13 9780613835657
- Publish Date 16 March 2004 (first published 16 March 1998)
- Publish Status Out of Print
- Out of Print 13 March 2021
- Publish Country US
- Imprint Turtleback Books
- Edition Bound for Schools & Libraries ed.
- Format Hardcover (Library Binding)
- Pages 32
- Language English