A lone body, making one passage around the Sun for every ten by Neptune, is rewriting the rules of planetary dynamics in the outermost reaches of our solar system. The discovery of 2020 VN40 a ...

NASA is planning a mission to the coldest known object in our solar system in its hunt for alien life. The legendary space agency wants to send a high tech probe to Neptune's icy moon Triton, which ...

Astronomers have long predicted that deep beneath Neptune’s thick blue clouds lies a super-hot body of water that, despite its high temperature, never boils because of its incredibly high-pressure ...