TOI-199 b, a rare temperate giant planet, sits between scorching hot Jupiters and frozen gas giants, and JWST has found ...

If confirmed, the rock would become just the second world past Neptune in our solar system to host an atmosphere.

A planet that is about the size of Saturn, but with a temperature more like Earth's, has an atmosphere rich in methane, ...

The atmosphere is between 5 million and 10 million times thinner than Earth's atmosphere. A very small body, far from the sun in an icy outer realm of the solar system, has mysteriously grown an ...

Astronomers detected signs of a thin atmosphere around distant object 2002 XV93, surprising scientists who believed it was ...

Earth’s surface is warming, but the upper atmosphere has been cooling for decades, and scientists now understand why.

A rare observation opportunity revealed the presence of a thin atmosphere around a small object beyond Pluto.

A new study explains why carbon dioxide is cooling the upper atmosphere, even as it is warming Earth’s surface.

Scientists have finally cracked the mystery behind one of climate change’s strangest fingerprints: while Earth’s surface ...

Pluto’s atmosphere is hard to observe from Earth. It can only be studied when Pluto passes in front of a distant star, allowing astronomers to see the effect the atmosphere has on starlight. When this ...