Mercury, up-close again. Introduction.

Abstract

PLANETARY SCIENCE IS MUCH ABOUT COMPARISONS. STUDYING OTHER BODIES IN OUR solar system with different sizes and compositions provides essential context for understanding Earth’s formation and evolution. Three planets—Mercury, Venus, and Mars—and the Moon, are most like Earth in their initial composition and relative size, but their differences are… (More)
DOI: 10.1126/science.321.5885.58

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