The solar system consists of eight planets, several dwarf planets, hundreds of moons, and billions of asteroids, comets and ...

This spacecraft was the farthest human-made object from Earth, and it will reach the Oort Cloud, a hypothetical region in ...

The Oort Cloud is a vast, icy shell that surrounds the solar system, marking the farthest reaches of our cosmic neighborhood. Though we have yet to directly observe its objects, the Oort Cloud is ...

Previous research has suggested that the Oort cloud contains remnants of the solar system's planets, which were formed over 4 billion years ago, but its exact shape and structure have been a mystery.

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 ...

According to the team, the gravitational pull of our solar system's planets and passing stars do not have much of an effect on the Oort Cloud. The team's new model was plotted from "a viewpoint of ...

The Oort Cloud is technically outside our solar system so this comet, nicknamed A3 — or as stargazing fans are calling it, the "Comet of the Century" — is visiting us from interstellar space.

Here, we show that the detection of Borisov implies that interstellar objects outnumber Solar system objects in the Oort cloud, whereas the reverse is true near the Sun due to the stronger gravitat… ...

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 ...

Oort Cloud objects are so far away that none has been seen in situ by even our most powerful telescopes. The only time we get to see them is when one happens to fall towards the inner solar system ...

Until now, the top candidate for the closest known flyby of a star to the solar system was the so-called “rogue star” HIP 85605, which was predicted to come close to our solar system in ...