Astronomers detect possible atmosphere around tiny, icy world beyond Pluto

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 or so across, this mini Pluto is thought to be the solar system’s smallest object yet with a clearly […]
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