News FocusAMERICAN GEOPHYSICAL UNION MEETING

A Lively Core Turns Mercury Into an Enormous Electromagnet

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Science  14 Jan 2005:
Vol. 307, Issue 5707, pp. 202
DOI: 10.1126/science.307.5707.202a

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Summary

SAN FRANCISCO, CALIFORNIA-- More than 11,500 earth scientists from around the world gathered 13 to 17 December at the fall American Geophysical Union meeting. Two groups of researchers built a strong case that Mercury generates its magnetic field in a lingering remnant of a molten core, much the way Earth's geodynamo operates.