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

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 ...

NASA and NOAA teams reported an annual maximum of 8.83 million square miles on September 9. They said this made it the fifth ...

Small icy moons in the outer reaches of our solar system may hide boiling oceans underneath their surfaces, a new study finds.