As planetary rings go, Neptune’s are especially dim—we couldn’t even confirm they existed until Voyager 2 got a close look at the planet in 1989. Since then, Neptune’s rings have been imaged by JWST ...

Many attempts have been made to find the so-called "Planet Nine", but all have – so far – been fruitless. In a new paper, a team claims to have their own explanation: our theory of gravity is wrong.

The James Webb Space Telescope's Near-Infrared camera (NIRCam) captured stunning imagery of Neptune, its rings and moons. It ...

Humankind is seeing Neptune’s rings in a whole new light thanks to the James Webb Space Telescope. In an infrared image released September 21, Neptune and its gossamer diadems of dust take on an ...

Lying at the very outskirts of our solar system, the ice giant Neptune has long represented both a challenge and a mystery to astronomers and space explorers alike. The dark and cold planet, the ...

Because the solar system's contents formed from a disk around the sun, we would expect the orbits of everything orbiting the sun to keep relatively close to the plane of that disk. However, some don’t ...

Like many scientists before him, Caltech Graduate Student Thomas McCord was searching for other answers when he made his unexpected discovery. Curious about the odd behavior of the planet Neptune’s ...

In 1906, astronomer and businessman Percival Lowell launched a search for "Planet X," a hypothetical giant planet orbiting the sun beyond Neptune. Lowell was convinced that Planet X existed based on ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. This article is more than 3 years old. This global color ...

A passing star, or a stellar flyby, with the potential to pull Neptune out of its orbit by just 0.1%, could mean catastrophe for the entire solar system. But don’t worry — it won’t happen in our ...