Triton's crust is 55% nitrogen ice, with other ices (like water ice and frozen carbon dioxide) mixed in: the same ratios as Pluto. Triton has a reddish color to it, thought to be from methane ice ...

As NASA’s New Horizons mission heads to Pluto, scientists could get an idea of what to expect by studying Triton, Neptune's strange icy moon.

Astronomers using the James Webb Space Telescope (JWST) have taken a fresh look at the distant edges of our solar system — and found that, once again, Pluto is defying expectations.When NASA's New ...

Neptune’s largest moon, Triton, and the dwarf planet Pluto may have shared a common origin before being separated in the early solar system, an analysis of their composition suggests.

Pluto has been kicking it in Capricorn since 2008 and after it moves into Aquarius on March 23 it will return to the sign of the sea goat for a reunion tour in June before settling into the domain ...

Pluto, with its heart-shaped glacier, as captured by the New Horizons spacecraftJPL/NASA Pluto will mark a birthday of sorts on March 23, 2178. No one is likely to be there to celebrate it, of ...

Pluto was always in a tough spot when it came to being a planet. Just 1,477 miles across, it's only one-fifth the diameter of Earth. It did have five known moons: Charon, Nix, ...

It takes Pluto slightly over 248 Earth years to orbit the sun, which means that on March 23, 2178, one Plutonian year will have elapsed since the dwarf planet was first spotted, on Feb. 18, 1930.