Which planet is the furthest from the sun? Some may think it’s Pluto, but it’s actually Neptune. Learn more about this ice ...

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 ...

Look to the southeastern horizon in the hours following sunset on Nov. 29 — you'll be able to see the moon shine close to the ...

For the first time in decades, a new tiny moon has been found in orbit around the gas giant Neptune, according to a study published Wednesday in the journal Nature. Hippocamp, now known as Neptune’s ...

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 ...