Triton, which is about 1,680 miles (2,700 kilometers) wide, has a unique property among large solar system moons: a retrograde orbit. [ Video: Fly By Neptune's Freezing Moon Triton ] ...

The orbit of Triton (red) has a 157° tilt in comparison to moons that co-rotate with Neptune's ... More rotation (green), and a tilt of 130° to objects that co-rotate with the ecliptic plane.

Triton, which is about 1,680 miles (2,700 kilometers) wide, has a unique property among large solar system moons: a retrograde orbit. [ Video: Fly By Neptune's Freezing Moon Triton ] ...

They found that the atmosphere of Triton, despite having less than 1/70,000 the air pressure of Earth's atmosphere, could sufficiently slow a spacecraft and allow it to enter into a captured orbit ...

The orbit of Triton (red) has a 157° tilt in comparison to moons that co-rotate with Neptune's... [+] rotation (green), and a tilt of 130° to objects that co-rotate with the ecliptic plane.

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 ...

Neptune has 14 known moons. With the exception of Triton, all of Neptune's moons are very small, and they come in two general flavors: regular and irregular. The regular ones orbit close to the ...

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 orbit and icy ...

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.

(SPACE.com) 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 ...

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