The Oort cloud, a theoretical spherical shell surrounding our solar system, extends from approximately 1,000-2,000 AU to potentially 100,000 AU, halfway to Alpha Centauri. Its existence is inferred ...

The Oort Cloud's inner edge begins approximately 2,000-5,000 AU from the Sun, extending to a nebulous outer boundary of 10,000-100,000 AU (0.16-1.6 light-years). The proximity of the Oort Cloud to the ...

NASA's Pleiades supercomputer has provided fresh insights into the Oort cloud – a vast, theoretical spherical shell of icy objects that surrounds our solar system. For a long time, the Oort cloud's ...

We typically think of the Oort cloud as scattered ice balls floating far from the sun, yet still tied to it gravitationally.

In the farthest reaches of our solar system, beyond the familiar planets and even the icy Kuiper Belt, lies a mysterious ...

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 spawned ...

Astronomers searching for the faintest glimmers of light beyond distant Pluto say they’ve discovered a new dwarf planet – and that this planetoid’s movements hint that an invisible giant planet ...

Feb. 23 (UPI) --A shell of icy objects at the edge of the solar system known as the Oort cloud has a pair of spiral arms that resemble a miniature galaxy, new research suggests. Until now, the shape ...

The Oort cloud is a region in our solar system's vicinity we don’t know all that much about. Named after Dutch astronomer Jan Oort, it is a theoretical concept comprising planetesimals (solid objects ...

New research may shine a light on part of outer space's great mysteries: the Oort Cloud. The Oort Cloud is the name given to a theorized group of potentially trillions of icy objects on the edge of ...

Meteorites burn up in Earth’s atmosphere on a regular basis, but a space rock that landed in Canada last year threatens to shake up our entire understanding of the solar system. Scientists traced its ...

A "hyperactive" comet that is due to make its closest approach to Earth in less than two weeks' time will give scientists a window into the early days of our solar system billions of years ago. The ...