Astronomers Discovered Thin Atmosphere on Kuiper Belt Object 2002 XV93

Astronomers Discovered Thin Atmosphere on Kuiper Belt Object 2002 XV93

Astronomers initially identified a thin atmosphere surrounding the small trans-Neptunian object (612533) 2002 XV93 located in the Kuiper Belt. This discovery challenged previous assumptions that such small distant bodies could not retain atmospheres. The detection was made through observations including stellar occultation techniques.

Later, Japanese astronomers from the National Astronomical Observatory of Japan confirmed the presence of this unexpected atmosphere, marking the first such finding beyond Pluto. This discovery has significant implications for understanding atmospheric retention on small Kuiper Belt objects and may prompt revisions to existing theories about these distant solar system bodies.

Acteurs

Ko Arimatsu National Astronomical Observatory of Japan Astronomers

Lieux

Kuiper Belt

Articles

5 mai 2026
2 au total
Icy object beyond Pluto has an atmosphere that shouldn't exist, study suggests
Icy object beyond Pluto has an atmosphere that shouldn't exist, study suggests

Live Science • 05 mai 20h38

Japanese astronomers have identified a thin atmosphere around (612533) 2002 XV93, a small trans-Neptunian object, challenging existing theories about atmospheric retention on such bodies.

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A tiny world at the edge of our solar system grew a mysterious atmosphere, and we don't know how
A tiny world at the edge of our solar system grew a mysterious atmosphere, and we don't know how

Space • 05 mai 18h00

A thin atmosphere has been discovered around (612533) 2002 XV93, a small trans-Neptunian object, challenging previous assumptions about such bodies.

Crédibilité 90% Manip. 0% Centre
4 mai 2026
3 au total
Atmosphere spotted around small, distant solar system object
Atmosphere spotted around small, distant solar system object

CNN • 04 mai 21h03

A thin atmosphere has been identified around (612533) 2002 XV93, a small trans-Neptunian object, challenging previous assumptions about atmospheric retention on such bodies.

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Astronomers believe they've detected an atmosphere around a tiny, icy world beyond Pluto
Astronomers believe they've detected an atmosphere around a tiny, icy world beyond Pluto

Yahoo • 04 mai 15h02

Researchers have identified a thin atmosphere around 2002 XV93, a small trans-Neptunian object, marking the first such discovery beyond Pluto.

Crédibilité 90% Manip. 5% Centre
Astronomers detect an atmosphere around a mini Pluto
Astronomers detect an atmosphere around a mini Pluto

AP News • 04 mai 15h02

Researchers have identified a thin atmosphere around (612533) 2002 XV93, a small trans-Neptunian object, challenging previous assumptions about atmospheric presence on such bodies.

Crédibilité 93% Manip. 2% Centre