And Triton is not the only outlier at Neptune. Nereid, one of the planet's outermost moons and the third largest, has one of the most stretched out, or eccentric, orbits of any moon in our solar ...

Triton was discovered in 1846 by the British astronomer William Lassell, but much about Neptune’s largest moon still remains a mystery.A flyby by NASA's Voyager 2 spacecraft in 1989 offered a ...

Triton was discovered in 1846 by the British astronomer William Lassell, but much about Neptune’s largest moon still remains a mystery.

An enhanced view of Neptune's largest moon, Triton. 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 ...

Neptune's largest moon remains a mystery, may have deep oceans sloshing under its surface. Latest. ... (SPACE.com) Triton was discovered in 1846 by the British astronomer William Lassell, ...

Neptune's original family of satellites may have been destroyed when its largest moon, Triton, entered the picture. For years, scientists have suspected that Triton wasn't part of Neptune's ...

For years, scientists have suspected that Triton wasn't part of Neptune's original collection of moons. The massive moon has a backward orbit, and makes up over 99 percent of all the mass orbiting ...

Crescents of Neptune and Triton in an image taken by the Voyager 2 spacecraft, about three days from its closest approach to Neptune in 1989. Credit... NASA/JPL . By David W. Brown.

This is its diary entry from after the Neptune and Triton encounter, as the probe began its trip out of the Solar System: Star Date -1.259 (1990) Today I am filled with an intense sorrow.

Triton is also an “irregular” satellite that has an inclined, circular orbit around Neptune. It is highly unlikely that the moon formed in such a configuration and was probably captured from elsewhere ...

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 ...