A teeny-tiny world beyond Pluto appears to have an atmosphere

How did that happen? An icy world, perhaps just 300 miles wide and far beyond Pluto , may have air, challenging the assumption that small space objects can't hold onto an atmosphere . This world, known as 2002 XV93, orbits in a distant region sprinkled with leftover rubble from our solar system's ...
2026-05-06 09:00:00