A brief stellar eclipse hints that this 2002 XV93 has a thin atmosphere. It would be a first for any solar-system body farther from the sun than Pluto.
A small object beyond Pluto may have a thin atmosphere
Lisa Grossman
A brief stellar eclipse hints that this 2002 XV93 has a thin atmosphere. It would be a first for any solar-system body farther from the sun than Pluto.