A rare discovery beyond Neptune is forcing scientists to rethink early solar system dynamics and the forces that shaped ...

Scientists say studying objects like Ammonite, despite their immense distance, offers valuable insight into the solar ...

Astronomers have found that a weird space rock at the edge of the solar system is locked in a rhythmic dance with Neptune. The object, designated 2020 VN40, is part of a family of distant solar system ...

The origin of super-Earths and sub-Neptunes has been revealed in a system of four young planets that are dramatically losing ...

The space agency has learned a lot over 10 years observing the weather of our solar system's outer planets. When you purchase through links on our site, we may earn an affiliate commission. Here’s how ...

At extreme pressures and temperatures, water becomes superionic — a solid that behaves partly like a liquid and conducts ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. A composite image comparing the relative sizes of our solar system's known dwarf planets, ...

NASA’s newly launched IMAP mission is set to tell us more about the boundary between our Solar System and interstellar space ...

Six of our cosmic neighbors are expected to line up across the night sky tonight, in what has been dubbed a "planetary parade". Throughout much of January and February, Venus, Mars, Jupiter, Saturn, ...

How far out? It’s so far out that the discoverers nicknamed it “Farout.” All they can see is a pinkish dot of light in the night sky, but that is enough to infer that they are looking at a 300-mile ...