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 Date: 2012-12-12 11:15:04Terrestrial planets Planetary science Discovery program MESSENGER Mercury Geomagnetism Venus Io Planet Spaceflight Astronomy Spacecraft |
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| First Page | Document Content | |
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Date: 2012-12-12 11:15:04Terrestrial planets Planetary science Discovery program MESSENGER Mercury Geomagnetism Venus Io Planet Spaceflight Astronomy Spacecraft |
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Mission Overview Key Spacecraft Characteristics MESSENGER is a scientific investigation of the planet Mercury. Understanding