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What spacecraft has visited Triton?
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Triton
Image of Triton, Neptune's largest satellite, captured by a camera aboard Voyager 2, 1989.
The only spacecraft to have visited Triton is Voyager 2.
During its mission to the Neptunian system in August 1989, the probe passed within 40,000 km (24,800 miles) of the moon. This flyby provided the first high-resolution images of Triton's surface, revealing features such as geyserlike plumes, nitrogen ice caps, and a landscape marked by fractures. No other spacecraft have visited Triton, and there are currently no future missions planned to the moon.12