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.

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

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 ...

(if going by patent filings) of the telescope to finally see Neptune's auroras, and it's thanks to NASA's James Webb Space ...

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