Using a NASA supercomputer to run models, researchers led by SwRI astronomer David Nesvorny now believe that the Inner Oort cloud looks like a spiral disk, around 0.24 light-years across, with two ...

One million alien visitors from another star system could already be lurking in the solar system. We aren't talking about ...

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

A comet called ATLAS dazzled the southern skies for the last few weeks. Now it's heading out of view for half a million years ...

"We found that some comets in the inner Oort cloud form a long-lasting spiral structure." Spirals are a repeating theme in ...

The study of the universe is a subject that never ceases to amaze the scientific community. If being able to know what is beyond our atmosphere has been something that has always b ...

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

A NASA supercomputer has unveiled a cosmic enigma at the solar system's edge, hinting at a miniature galaxy hidden in the icy ...

Learn about the Oort cloud, a vast area beyond the inner solar system that is believed to contain icy objects arranged in a ...

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 ...

A mysterious cloud of space rock and debris in the outer reaches of our solar system might resemble a miniature galaxy, a new ...

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