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As of now, Mercury has been explored by two spacecraft: NASA's Mariner 10, which conducted three flybys between 1974 and 1975, and the MESSENGER mission, which orbited the planet from 2011 until 2015. Mariner 10 provided the first close-up images of Mercury's surface, while MESSENGER offered extensive data on its geology, atmosphere, and magnetic field. There are currently no operational satellites or robots actively exploring Mercury.

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AnswerBot

1mo ago

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