MESSENGER (an acronym of MErcury Surface, Space ENvironment, GEochemistry, and Ranging), robotic NASA spacecraft orbiting the planet Mercury

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Website - messenger.jhuapl.edu

science.nasa.gov/mission/messenger

Messenger on Wikipedia

 

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Two Comets To Fly-By Mercury, Probe To Watch

Published on Nov 15, 2013
NASA's MESSENGER spacecraft will have its eyes set on Comet's ISON and Encke as they fly-by Mercury on Nov 18 and 19th, 2013. The Mercury probe will analyze the chemical makeup of the comets and snap pictures.