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 ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. An artist's illustration of the Voyager 1 probe travelling into the Oort Cloud. | Credit: Science ...

In a nutshell: Far beyond the orbit of Pluto lies a mysterious region filled with icy objects circling the Sun. This distant zone, known as the Oort Cloud, remains unseen, but its existence is ...

The mysterious cloud of space rocks and debris at the edge of the solar system may have spiral arms, making it resemble a mini galaxy, a new study says. The Oort cloud is a theoretical debris shell at ...

Spirals are a repeating theme in astronomy, with arguably the most famous example of a swirling armed structure being our ...

(CNN) — 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 ...

The edge of the Solar System is a strange place, full of oddities we've only just begun to probe. But perhaps the oddest of all is the Oort Cloud, a vast field of icy debris extending out to 100,000 ...

(CNN) — 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 ...