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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.
- Marsâs 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 childâs toy wagon.
About: Brings together old myths and new discoveries in a comprehensive examination of the 'red planet', along with a review of recent missions and an examination of modern findings.
About: Brings together old myths and new discoveries in a comprehensive examination of the 'red planet', along with a review of recent missions and an examination of modern findings.
About: Brings together old myths and new discoveries in a comprehensive examination of the 'red planet', along with a review of recent missions and an examination of modern findings.
About: Seymour Simon has written more than 150 award-winning science books about animals, anatomy, astronomy, earth science, and vehicles!
About: Brings together old myths and new discoveries in a comprehensive examination of the 'red planet', along with a review of recent missions and an examination of modern findings.
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