An accidental discovery in an astronomy show offers researchers a new clue about the mysterious Oort Cloud, a large expanse ...

This video is a part of a series looking at the Outer Solar System. The Oort Cloud is believed to be a vast cosmic shell at the edge of our Solar System that astronomers have never directly seen.

Here’s how it works. The Oort cloud is a shell of icy bodies that surrounds the solar system. It begins beyond the Kuiper Belt and even beyond the influence of the sun’s magnetic field ...

A recent study suggests a relationship between solar cycles and the atmosphere of the solar system’s eighth planet ... And Neptune has ghostly clouds — at least, it used to.

“It’s completely plausible for our solar system to have captured such an Oort cloud planet,” says Nathan Kaib, a co-author on the new work and an astronomer at the Planetary Science Institut ...

According to the latest paper, the cold cloud compressed the heliosphere in such a way that it briefly placed Earth and the other planets in the solar system outside of the heliosphere's influence.

According to researchers, the cloud spans about 40 moon-widths across the sky and has a mass about 3,400 times of the sun. It’s located along the edge of the Local Bubble, a gas-filled cavity in space ...

A vast star-forming cloud of molecular hydrogen that is one of the largest single structures in the sky has been discovered hidden near the solar system. The crescent-shaped cloud—which its ...

Previous research has suggested that the Oort cloud contains remnants of the solar system's planets, which were formed over 4 billion years ago, but its exact shape and structure have been a mystery.

If you’re in the path of totality or nowhere near Monday’s solar eclipse ... these clouds to form and persist as they’re a key component in the climate system,” he said.

The ice giant’s ghostly, cirrus-like clouds largely disappeared four years ... more intense ultraviolet radiation bombards the solar system. With data from NASA’s Hubble Space Telescope ...