Small icy moons may have hidden oceans that briefly boil under thick ice. Changing pressure inside these moons shapes their ...

Across the outer solar system, some of the tiniest icy satellites are emerging as unlikely candidates for extreme internal oceans, where water may simmer or even boil beneath frozen crusts. Instead of ...

Several small worlds beyond Jupiter are not just frozen rubble. Beneath their shining skins, many hide oceans of liquid water ...