Rare atmosphere detected: A Kuiper Belt object just 300 miles wide shows signs of an atmosphere, the first confirmed beyond Pluto. Unexpected survival: Models suggest gases should escape quickly from ...

Surprising detection: Scientists observed a gradual dimming of starlight during an occultation, indicating a thin atmosphere around 2002 XV93 far beyond Neptune. Defying expectations: Models predict ...

Scientists discovered a mini-Neptune with a heavy atmosphere, revealing new clues about how planets migrate through young ...

One night last fall, University of Cincinnati astrophysics graduate Paul Smith waited anxiously for data to start rolling ...

A tiny world in our Solar System has an atmosphere it shouldn’t—hinting something dramatic happened there recently.

The researchers estimated that an extremely thin atmosphere, with a surface pressure between about 100 and 200 nanobars, ...

Astronomers have spotted something surprising in the far outer Solar System—a faint, short-lived atmosphere clinging to a ...

The atmosphere is between 5 million and 10 million times thinner than Earth's atmosphere. A very small body, far from the sun ...

Astronomers have detected a thin atmosphere around a tiny celestial body in the outer solar system for the first time — an ...

In the far reaches of our solar system - beyond the outermost planet Neptune - resides a host of icy and desolate ​celestial ...