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

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

The finding offers fresh insight into our solar system’s farthest, coldest objects in a region known as the Kuiper Belt.

Astronomers have confirmed, for the first time, a trans-Neptunian object with a thin atmosphere—something previously thought ...

Pakistan, May 5 -- A tiny, little-known world beyond Pluto appears to have an atmosphere, Japanese astronomers said on Monday ...

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

The celestial body’s status as the solar system's ninth planet was withdrawn in 2006. Now some experts say we might want to ...

If planets are, as many of your own geophysicists argue, bodies shaped by their own gravity and expressing internal processes ...

Astronomers in Japan have found evidence suggesting a possible thin atmosphere around a distant icy object beyond Pluto, ...

A tiny, little-known world beyond Pluto appears to have an atmosphere, Japanese astronomers said Monday, defying what had ...