Your odds of winning the lottery are still 100,000 times larger than the probability of either Voyager hitting a comet.

The Oort Cloud is a vast, icy shell that surrounds the solar system, marking the farthest reaches of our cosmic neighborhood. Though we have yet to directly observe its objects, the Oort Cloud is ...

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 ...

Right now we can’t observe extrasolar Oort clouds, if they exist. (Not for lack of trying; we’ve been looking for them since 1991!) In fact, we can’t even directly observe our own Oort Cloud.

This video investigates the unusual early activity of Comet Bernardinelli-Bernstein, a massive body traveling from the Oort ...

The Oort Cloud, named after Dutch astronomer Jan Oort in 1950, is an extremely distant spherical shell of icy cloud, whose exact shape and how it behaves has remained a mystery since its discovery.

The Oort cloud could stretch as far as a lightyear away from our sun. Like the name suggests, the Oort cloud is kind of cloudy, and surrounds our solar system like a wide but tenuous shell.

This weekend, however, a piece of the Oort cloud is coming to us. Comet Siding Spring was discovered just last year and, at first, astronomers thought it might have been on a collision course with ...

It's a complete game changer." According to NASA, the Oort Cloud is thought to have formed when gravity from the newly formed planets pushed icy objects away from the sun.

While the dwarf planet is incredibly far out, it’s still not far enough to be part of the Oort cloud, a hypothesized cloud of icy debris that surrounds the solar system’s disc in a spherical ...

The existence of the Oort Cloud was first proposed in 1950 by Dutch astronomer Jan Oort, who imagined it as a shell of icy bodies swirling around the sun from up to 1.5 light-years away.