MESSENGER

NASA’s Mercury Surface, Space Environment, Geochemistry, and Ranging (MESSENGER) mission was launched in August 2004 on a long journey to Mercury. The spacecraft completed one flyby of Earth, two of Venus, and three of Mercury before entering Mercury's orbit in March 2011 for an orbital phase of one Earth year. The data provided by MESSENGER’s multiple instruments will answer questions about Mercury’s crust and polar deposits, atmospheric and magnetospheric structure, and tectonic history. MESSENGER carries seven instruments and experiments whose data are currently supported by ODE: GRS, NS, XRS, MASCS, MDIS, MLA, and the Radio Science Experiment.

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