Triton, the largest moon of Neptune—The Cantaloupe Moon, with its literal cantaloupe-like terrain and active geysers, Triton is one of the most intriguing objects in the solar system. Aside from these ...

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 quick ...

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 checkout ...

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 the ...

Neptune’s supersonic winds and icy storms revealed a planet so extreme that it forever changed our picture of the solar ...

Beneath Triton's frozen crust of nitrogen ice, scientists believe a vast subsurface ocean could be hiding and with it, the potential for alien life. This video explores the cutting-edge science behind ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Illustration of Neptune seen from the surface of its largest ...

Neptune’s large moon Triton may have abandoned an earlier partner to arrive in its unusual orbit around Neptune. Triton is unique among all the large moons in the solar system because it orbits ...

Newly released images commemorate the 20-year anniversary of the Voyager flyby of Neptune’s moon Triton on Aug. 24, 2009. Triton was the last solid object visited by NASA’s Voyager 2 spacecraft as it ...