NASA telescopes in Chile have discovered a comet from interstellar space, making its closest approach in October.

Astronomers have discovered a new interstellar comet passing through our solar system, marking the third interstellar object ...

Astronomers have discovered a rare instance of a interstellar comet speeding through the solar system. The 3I/ATLAS was first ...

The monstrous 85-mile-wide comet C/2014 UN271 is the second most distant body originating from the Oort Cloud found to be ...

The Oort cloud has sent its biggest comet yet towards the inner solar system, and it is travelling at an insane speed, ...

The Oort Cloud, an expanse of icy bodies in the far reaches of our solar system, is shown here in a scene from "Encounters in the Milky Way," a show at New York City's Hayden Planetarium that ...

Close stellar encounters could change the structure of our planetary system, potentially dooming Earth or other worlds to ...

The Oort Cloud, an expanse of icy bodies in the far reaches of our solar system, is shown here in a scene from "Encounters in the Milky Way," a show at New York City's Hayden Planetarium that ...

Passing stars could trigger instability across the solar system, resulting in Earth being hauled out of its orbit.

Stretching nearly a light-year from the Sun, the Oort Cloud serves as a cosmic reservoir of ancient material left over from the solar system’s formation over 4.5 billion years ago.

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 ...