Exploration of Neptune

Photograph of Neptune in true colour by Voyager 2 in 1989.[a] Neptune's south pole is slightly above the bottom of the image.

Neptune has been directly explored by one space probe, Voyager 2, in 1989. As of 2024, there are no confirmed future missions to visit the Neptunian system, although a tentative Chinese mission has been planned for launch in 2024.[1] NASA, ESA, 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.[citation needed]

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.[2]


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  1. ^ "China to launch a pair of spacecraft towards the edge of the solar system". 16 April 2021.
  2. ^ de Pater, I; Gibbard, S.; Martin, S.; Marchis, F.; Roe, Henry G.; Macintosh, B (2003). "Keck Adaptive Optics Observations of Neptune's Ring and Satellite Keck Adaptive Optics Observations of Neptune's Ring and Satellite System". AAS/Division for Planetary Sciences Meeting Abstracts. 35 (Year 2002). Bibcode:2003DPS....35.2002D.

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