
A Tiny Kuiper Belt World May Have an Atmosphere It Shouldn’t Be Able to Keep
Astronomers studying trans-Neptunian object 2002 XV93 report signs of a thin atmosphere, raising new questions about how such a small body could retain gas so far from the Sun.
- Astronomers observed signs of a thin atmosphere around the small Kuiper Belt object 2002 XV93.
- Its size suggests it should not retain gas for long, raising questions about how the atmosphere is sustained.


