Rocky fireballs like the one that fell over Alberta, Canada last year shouldn't originate from the icy Oort Cloud... but this one apparently did. When you purchase through links on our site, we may ...

Paul Weissman, lead scientist at the Table Mountain Observatory, part of NASA's Jet Propulsion Laboratory, offers the following answer. The Oort cloud is a huge spherical cloud of some 10 12 comets ...

Learn about the Oort cloud, a vast area beyond the inner solar system that is believed to contain icy objects arranged in a spiral shape. At the edge of our solar system, a host of large, icy bodies ...

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 ...

The cold and mysterious Oort cloud at the edge of our solar system may be hiding a rogue exoplanet, new research suggests. When you purchase through links on our site, we may earn an affiliate ...

An object of unusual size will make its closest approach to the Sun in 2031, during which time it will swing past the orbit of Saturn and possibly turn into an exceptionally large comet. Astronomers ...

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 distance ...

The human mind may find it difficult to conceptualize: a cosmic cloud so colossal it surrounds the Sun and eight planets as it extends trillions of miles into deep space. The spherical shell known as ...

The solar system has a new most distant member, bringing its outer frontier into focus. New work from Scott Sheppard from the Carnegie Institution for Science in Washington, D.C., and Chadwick ...