Second, Triton is one of the irregular moons. It orbits backward relative to Neptune's spin, and its orbit is inclined at a stunning 67 degrees — almost perpendicular to its parent planet.

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 ...

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, which is about 16 arcsec east (celestial north is up, east is to the left) of Neptune, is approximately 180 times fainter. Scientists consider Triton to be one of the best analogs of Pluto ...

If water is found, then NASA would mark Triton – the largest of Neptune's 13 moons – as a key target for future alien hunting missions. Trident would also give scientists a chance to visit ...

But whereas our satellite takes nearly a month to complete an orbit, Triton finishes a circuit in just 5.88 Earth days, yanked violently by Neptune’s gravity, which is 17 times greater than ours.

Neptune's original family of satellites may have been destroyed when its largest moon, Triton, entered the picture. New research suggests that the massive moon may have tossed some of the original ...

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 ...

Neptune's largest moon, Triton, passed in front of a distant star in a rare celestial event known as an occultation — and the European Space Agency's Gaia spacecraft revealed new clues about the ...

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