A new study suggests yet another theory for a possible extra planet in our solar system, likely of a size between Mercury and ...

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 ...

The Oort cloud is traditionally thought of as a vast shell of perhaps trillions of icy objects encasing our solar system, serving as the final boundary between us and the dark reaches of interstellar ...

The exact shape of the Oort cloud and how it is affected by forces beyond our solar system have, so far, remained mysterious. Now, researchers have developed a new model that suggests the inner ...

If you’ve ever wanted to see a chunk of the early solar system with your own eyes, now’s your chance. The comet C/2025 A6, ...