The inner Oort cloud, between 1,000 and 10,000 AU from the sun, displays a spiral formation with arms that extend 15,000 AU.

Astronomers have discovered that the Solar System traversed the Orion star-forming complex, a component of the Radcliffe Wave galactic structure, approximately 14 million years ago. This journey ...

Fig.1: Artistic representation of the Milky Way. The position of the Solar System is pointed by a white row. Our sun and its ...

The Milky Way's tidal forces may be shaping the Oort Cloud's inner structure into a spiral shape.

An international research team led by the University of Vienna has discovered that the Solar System traversed the Orion ...

While all seven planets could appear in some form in parts of the U.S., not all of them will be visible to the naked eye.

A star racing through the Milky Way may have a planet in tow, setting a new speed record for exoplanet systems. Using ...

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 closer to the Sun, which means it's more strongly bound by the Sun's ...

NASA scientists have detected a star and trailing exoplanet that may be sailing through the Milky Way with unprecedented ...

Astronomers have peered into an alien planet's atmosphere and found extreme weather unlike anything in the solar system.

New research suggests the Oort cloud, a shell of icy objects at the edge of our solar system, may feature spiral arms similar to the Milky Way, revealing a complex cosmic structure beyond Pluto.

The giant cloud of detritus is thought to be the source of strange comets and meteorites flying past Earth such as the ...