Posts Tagged ‘Mercury’

Messenger Makes New Discoveries at Mercury

Monday, July 7th, 2008


Scientists have argued about the origins of Mercury’s smooth plains and the source of its magnetic field for more than 30 years. Now, analyses of data from the January 2008 flyby of the planet by the Mercury Surface, Space Environment, Geochemistry and Ranging (MESSENGER) spacecraft have shown that volcanoes were involved in plains formation and suggest that its magnetic field is actively produced in the planet’s core.

Scientists additionally took their first look at the chemical composition of the planet’s surface. The tiny craft probed the composition of Mercury’s thin atmosphere, sampled charged particles (ions) near the planet, and demonstrated new links between both sets of observations and materials on Mercury’s surface.

–> Link to NASA article

–> Link to Science Magazine special issue


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