A hidden structure at the farthest reaches of our solar system is challenging long-held theories. Using advanced simulations, a NASA supercomputer has revealed that the Oort Cloud, a vast shell of icy ...

The Oort cloud is a shell of icy objects that forms the very outskirts of our Solar System. Recently, a group of researchers ...

The stars as seen from Earth would have looked dimmer 14 million years ago, as the solar system was in the middle of passing ...

Early in our Solar System’s history, bits of icy debris were scattered and then gradually coaxed into a spiral alignment in ...

A giant wave of undulating gas and dust appears, per new research, to have engulfed our Solar System millions of years ago.

Most of the long-period comets in the Solar System come from the outer Oort Cloud. The inner region is much more stable. It's ...

The triple star system is sending comets, asteroids and meteors our way, and the number of interstellar objects entering the solar system will rise.

Learn about the Oort cloud, a vast area beyond the inner solar system that is believed to contain icy objects arranged in a ...

The seven other planets in our solar system will line up in the night sky ... above the surface of Mars for what's known as a gravity assist—a maneuver to bend the spacecraft's trajectory ...