The farthest planet from the Sun has a rather strange collection of moons in its orbit. That may be because Neptune’s largest moon, Triton, made a mess when it forced its way into the planet’s orbit ...

For decades, astronomers thought Neptune’s moon Nereid was probably a captured object from the Kuiper Belt. A new study now points to a very different story: Nereid may actually be one of Neptune’s ...

Neptune’s moons have long provided evidence of a cataclysm four billion years ago. A new study suggests one moon may have made it through. By Jonathan O’Callaghan Neptune’s moon system is bizarre.

One of Neptune's largest moons has stuck around the neighborhood much longer than scientists previously thought — in fact, it may be the sole survivor of the planet's earliest days. Nereid, Neptune's ...

James Webb found Neptune's moon Nereid has an unusual icy surface, suggesting it formed alongside the planet instead of being captured later.

Nereid, Neptune’s third-largest moon, could be the only intact survivor from an ancient set of moons destroyed early in the solar system’s history, according to a new analysis based on data from the ...

Neptune, the farthest planet from the sun, is surrounded by 16 known moons—and many of them are weirdos. Now, researchers propose that one of those oddballs, a wide-orbiting moon called Nereid, is the ...