Add Yahoo as a preferred source to see more of our stories on Google. View of the Tsuchinshan-ATLAS comet on Sept. 30, 2024, from Monfrague National Park in Spain. Marcos del Mazo/LightRocket via ...

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

The mysterious cloud of space rocks and debris at the edge of the solar system may have spiral arms, making it resemble a mini galaxy, a new study says. The Oort cloud is a theoretical debris shell at ...

A team of astronomers has made a groundbreaking discovery by detecting molecular activity in comet C/2014 UN271 (Bernardinelli-Bernstein)—the largest and second most distantly active comet ever ...

The Solar System is far larger than the neat diagrams found in textbooks. Beyond the planets lies a vast region of icy debris ...

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 ...

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 ...

Initial analysis suggested the nucleus was approximately 13.7 kilometers wide (roughly city-sized); however, researchers believe this may have been an overestimate. It is likely a long-period comet ...

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 ...

An artist rendition of comet C/2014 UN271, the largest known comet in the Oort Cloud. Credit: NSF/AUI/NSF NRAO/M.Weiss A team of astronomers has made a groundbreaking discovery by detecting molecular ...