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Did you know that Mercury has a crater 810 miles (1,300 kilometers) wide? Or that that the planet's ridges and cliffs formed when its core cooled and shrank millions of years ago? Look inside to learn more about Mercury and its place in the solar system.
Describes the size, characteristics, and composition of the planet Mercury.
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Available FREE with any of the three textbooks in the Voyages series, the 2001 Update contains updated material on Mars Global Surveyor and Galileo spacecraft results, the NEAR-Shoemaker data from the asteroid Eros, the discovery of new extra-solar planets and planetary systems, the latest from Chandra, the implications of the latest cosmological measurements and more. The Update refers the reader back to the appropriate chapter of the main text, and shows how new discoveries and ideas fit, and includes both published and Web resources.
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