Like the newly-identified 2014 UN271, the NEOWISE comet pictured here is a long-period comet originating in the Oort Cloud. Photo by NASA Johnson via Flickr under CC BY-NC-ND 2.0 Amateur astronomers, ...

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 comet will make its closest approach to Earth in 2031, and it’s already attracting major attention from astronomers. Reading time 3 minutes Bernardinelli-Bernstein is officially the largest comet ...

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 ...

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 ...

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 ...

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

New research suggests that the close passage of a nearby star,HD 7977, might have sent comets from the outer reaches of the ...

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 ...

The sheath of comets surrounding our solar system is still theoretical, but it matches the available evidence. A new simulation from researchers at Leiden University in the Netherlands models the ...