This color photo of Neptune's largest moon Triton was obtained by NASA's Voyager 2 probe on Aug. 24, 1989, from 330,000 miles away. The resolution is about 6.2 miles, sufficient to begin to show ...

Triton isn’t just any moon – it’s one of the most mysterious objects in the entire solar system. In this video, we explore what makes Neptune’s largest moon so strange, from its backward ...

Sometimes, astronomy is like a forensic investigation: We can't just rerun the past, so we have to study clues to figure out what happened. And the outer solar system contains one striking crime ...

Add another moon to the New Horizons photo gallery: the spacecraft’s Long Range Reconnaissance Imager detected Triton, the largest of Neptune’s 13 known moons, during the annual spacecraft ...

The fainter moon, currently assigned the name "S/2021 N1," is 8.6 miles wide (14 km) and circles Neptune once every 27 years. Both Neptunian moons will be assigned permanent names based on sea ...

Sometimes, astronomy is like a forensic investigation: We can't just rerun the past, so we have to study clues to figure out what happened. And the outer solar system contains one striking crime scene ...