Astronomy and Space

Exploration of Neptune

Neptune has been directly explored by one space probe, Voyager 2, in 1989. As of 2026, there are no confirmed future missions to visit the Neptunian system. NASA, ESA, CNSA and independent academic groups have proposed future scientific missions to visit Neptune. Some mission plans are still active, while others have been abandoned or put on hold. Since the mid-1990s, Neptune has been studied from afar with telescopes, including the Hubble Space Telescope and the ground-based Keck telescope using adaptive optics.

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See also

• ▸Deputy Administrator of NASA
• ▸1834 massacre of friars in Madrid
• ▸Comet Encke

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