The Oort cloud is a shell of icy objects that forms the very outskirts of our Solar System. Recently, a group of researchers ...

The discovery that helium and iron can mix at the temperatures and pressures found at the center of Earth could settle a long ...

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 ...

Scientists from UNSW Sydney have located a potential new exoplanet—a planet that orbits a star outside of our solar ...

A hidden structure at the farthest reaches of our solar system is challenging long-held theories. Using advanced simulations, ...

Millions of years ago, our Solar System traveled through a densely populated galactic region and was exposed to increased ...

New simulations suggest that habitable worlds could have begun forming only 200 million years after the big bang ...

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

The mysterious Oort cloud is the source of many of our solar system's comets, but astronomers still have no idea what it ...

An international team of researchers, led by the University of Vienna, has revealed that the Solar System passed through the ...