Astronomers in Japan say they have found evidence that a distant, icy object beyond Pluto may have a very thin atmosphere. The discovery challenges earlier assumptions that bodies in this region, often thought to be too cold and inactive to sustain air, are unlikely to hold onto any significant atmospheric material.
According to the reports, researchers detected signs consistent with an atmosphere on the little-known world at the edge of the Solar System. The findings suggest that such trans-Plutonian objects may be more dynamic than previously believed, potentially forming and retaining tenuous gas under certain conditions. While the evidence points toward an atmospheric presence, the reports describe it as “possible,” indicating the work is still subject to confirmation through further observations and analysis.
Both outlets frame the result as a significant development in understanding the physical properties of outer Solar System bodies, though they do not describe new measurements in detail beyond the general claim of atmospheric evidence from Japanese astronomers.
