A tiny, little-known world beyond Pluto appears to have an atmosphere, Japanese astronomers said Monday, defying what had been thought possible for icy objects in our cosmic backyard. If confirmed, the roughly 500-kilometer-wide rock would become just the second world past Neptune in our solar system to host an atmosphere…

CAPE CANAVERAL, Fla. (AP) — A new study suggests that a tiny, icy world beyond Pluto harbors a thin, delicate atmosphere that may have been created by volcanic eruptions or a comet strike. Just 300 miles (500 kilometers) or so across, this mini Pluto is thought to be the solar system’s smallest object yet with […]

A new study suggests that a tiny, icy world beyond Pluto harbors a thin, delicate atmosphere that may have been created by volcanic eruptions or a comet strike.

Astronomers in Japan have found evidence suggesting a possible thin atmosphere around a distant icy object beyond Pluto, something previously thought unlikely for such bodies.

Astronomers in Japan have found evidence suggesting a possible thin atmosphere around a distant icy object beyond Pluto, something previously thought unlikely for such bodies.

A new study suggests that a tiny, icy world beyond Pluto harbors a thin, delicate atmosphere.