A team from the University of Arizona has made a startling new discovery about the formation of Pluto and its moon. Published in Nature Geoscience, the study presents a bold explanation for how these ...

Charon is large in size relative to Pluto, and is locked in a tight orbit with the dwarf planet. A new simulation suggests how it ended up there. By Jonathan O’Callaghan Some 4.5 billion years ago, ...