So which planets in our solar system have rings?All four giant planets — Jupiter, Saturn, Uranus and Neptune — sport these spectacular structures. Plus, many other objects in the solar system, ...

So which planets in our solar system have rings? Planetary rings might look sturdy and solid from afar, but they're made of tiny bits of ice and rock orbiting the planet. "Rings are mostly made of ...

U.S. astronomers hunting for "Planet Nine" have instead stumbled on what appears to be a new dwarf planet in the solar system ...

Scientists' hunt for a mysterious planet at the edge of our solar system might have turned up results. A US-trio appears to ...

A potential new dwarf planet has been discovered in the outer reaches of the solar system, and its existence poses the ...

Astronomers have found a rare form of methanol, a type of alcohol, in a planet-forming disk, providing a critical step in ...

It's an evocative idea that has long bedeviled scientists: a huge and mysterious planet is lurking in the darkness at the ...

It had not been thought possible that such tiny, weak stars could provide the conditions needed to form and host huge planets.

The astronomers discovered the planet when searching through more than 91,000 low-mass red dwarfs observed by NASA's TESS ...

A debris disk, or a protoplanetary disk, surrounds a young star and is filled with ice water, similar to what we have in the ...

For the dwarf planet candidate, one trip around the sun takes over 24,000 years. Its orbit challenges a proposed path for a hypothetical Planet Nine.