Jupiter is already the biggest planet by far in our solar system, but new research suggests it was somehow once even larger than it is now. Twice as large, in fact. To put that into context, those ...

Astronomers have observed an object that originated from beyond our solar system, thought to be an interstellar comet, speeding through our celestial neighborhood.

An accidental discovery might change how we think about one of the most mysterious structures in our solar system. The Oort Cloud, a large expanse of icy bodies revolving around the sun at a distance ...

Space Meteorite causes rethink of how and when our solar system formed Rocky bodies called protoplanets were thought to have formed slightly earlier in the inner solar system than those beyond the ...

It's officially the third known interstellar object to pass through our solar system, and it poses no threat to Earth. The other two interstellar objects were 2I/Borisov, reported in 2019, and ...

Like it says in the title, the page scales down our solar system so each pixel onscreen represents 3,474.8 kilometers⁠—the diameter of the moon, and about the distance between New York and Las ...