One of Neptune's 16 moons is not like the others, James Webb telescope finds — and it could be key to fully understanding the solar system

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

Neptune's odd moon Nereid may be sole survivor from ancient cosmic shake-up

Nereid may be an original Neptunian moon that was pushed outward when Triton entered the system billions of years ago.