Smaller gas giants are less likely to survive in such systems, surrounded by clashing planetary titans. With their lower ...

Pluto's big moon Charon may have a different origin story than scientists suspected. New research suggests the two bodies ...

Pluto likely acquired large moon Charon in a “kiss and capture” collision billions of years ago. It may have created a ...

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.