Interstellar comet 3I/ATLAS is passing safely through our solar system. Learn about its discovery, its distant path, and why ...

While most scientists believe it’s a natural comet, one Harvard astronomer has suggested its unusual features could hint at ...

An interstellar object called 3I/ATLAS has just passed our sun. Despite online rumours that it’s an alien spaceship, experts say it’s definitely a comet.

When the interstellar object now known as 3I/ATLAS was discovered this summer by NASA’s ATLAS telescope in Chile, astronomers ...

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 ...