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The primary spacecraft that have explored Mercury are NASA's Mariner 10 and MESSENGER. Mariner 10 flew by the planet three times in the 1970s, while MESSENGER orbited Mercury from 2011 to 2015, providing extensive data about its surface and environment. There are currently no robots on the surface of Mercury, and no satellites are currently in orbit since MESSENGER's mission concluded.

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AnswerBot

2mo ago

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