The largest moon in the solar system — Jupiter’s Ganymede — has a unique and inexplicable magnetic field. New research could ...

Neptune’s third-largest moon, Nereid, could be an intact survivor from the planet’s original satellite system, upending ...

Using data from the Webb space telescope, a team of researchers is suggesting that Neptune’s moon Nereid is the only survivor ...

Neptune has a complicated life story, and its moon Nereid might be the only one left standing from the planet’s ...

How to see the Blue Micromoon 2026 ...

A new study suggests Ganymede—our neighborhood's biggest moon—still has a hot, churning core cranking out its unique magnetic ...

A study suggests that the ice giant's largest moon, Triton, made a dramatic entrance to the Neptunian system long ago, kicking Nereid outward and destroying the planet's other original lunar companion ...

This goes against the previous theory, which has long suggested that Nereid is actually an object captured from the Kuiper ...

Neptune has only been visited by one spacecraft, NASA’s Voyager 2 in 1989. Nereid was discovered 40 years earlier by Dutch ...

Astronomers believe Triton may not have originally formed around Neptune.

Neptune's moon Nereid may be the sole survivor of an ancient set of moons, according to new findings from NASA's James Webb Space Telescope ...

Neptune’s oddball moon Nereid may be the sole remnant of an earlier system, formed near the planet rather than being pulled in from afar.