Discovered in 1846, Triton is the largest moon of Neptune - but it’s unlike any other. Scientists believe it was once a free-floating planet before Neptune’s gravity captured it.

Ganymede, Jupiter's largest moon and the solar system's largest, is bigger than Mercury and the dwarf planet Pluto, with a diameter of 5,268 kilometers.

It took this image of Neptune and its moon Triton, one of 77 composite photographs that appeared in our 2016 exhibition, Otherworlds: Visions of our Solar System, before speeding towards interstellar ...

Using Webb’s near-infrared spectrograph, astronomers have captured new images of Neptune that finally reveal the planet’s ...

"It was so stunning to not just see the auroras, but the detail and clarity of the signature really shocked me." ...

With scientists discovering hidden moons around Neptune and Uranus, as well as research claiming the distant planets could be home to hidden oceans, we can only hope future exploration missions ...

The James Webb Space Telescope identified the lights in the distant planet’s atmosphere, which could not be seen by earlier telescopes or spacecraft.