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A new Discovery mission proposal, Trident would explore Neptune's largest moon, Triton, which is potentially an ocean world with liquid…

On Aug. 25, 1989, NASA's Voyager 2 made its historic flyby of Neptune and that planet's largest moon Triton. The…

NASA's Voyager 2 spacecraft flew by Triton, a moon of Neptune, on August 25, 1989. This frame from a video…

NASA's Voyager 2 spacecraft flew by Triton, a moon of Neptune, in the summer of 1989. Dr. Paul Schenk, a…

NASA's New Horizons Long Range Reconnaissance Imager (LORRI) observed Neptune on June 23, apl2010, as part of a test of…

This simulated voyage over the surface of Neptune's large moon Triton was produced using topographic maps derived from images acquired…

This view of the volcanic plains of Neptune's moon Triton was produced using topographic maps derived from images acquired by…

This view of the volcanic plains of Neptune's moon Triton was produced using topographic maps derived from images acquired by…

This view of the volcanic plains of Neptune's moon Triton was produced using topographic maps derived from images acquired by…

These thermal images show a 'hot' south pole on the planet Neptune. These warmer temperatures provide an avenue for methane…

NASA's Voyager spacecraft was 8.6 million kilometers (5.3 million miles) from Neptune when it took this 61 second exposure through…

NASA's Voyager 2 obtained this parting shot of Triton, Neptune's largest satellite, shortly after closest approach to the moon and…

Features as small as 100 km (62 miles) across can be seen in this color image of Neptune's satellite Triton,…

Neptune's blue-green atmosphere is shown in greater detail than ever before by NASA's Voyager 2 spacecraft as it rapidly approaches…

This picture of Triton is a mosaic of the highest resolution images taken by NASA's Voyager 2 on Aug. 25,…

NASA's Voyager 2 was 530,000 kilometers (330,000 miles) from Neptune's largest satellite, Triton, when this photo was taken, Aug. 24,…

This 591-second exposure of the rings of Neptune were taken with the clear filter by NASA's Voyager 2 wide-angle camera.…

This bulls-eye view of Neptune's small dark spot (D2) was obtained by NASA's Voyager 2's narrow-angle camera. Banding surrounding the…







