Saturn’s biggest moon might not have a global ocean — but the search for life isn’t over

Image: The six infrared images of Titan above were created by compiling data collected over the course of the Cassini mission. They depict how the surface of Titan looks beneath the foggy atmosphere, highlighting the variable surface of the moon. Image credit: NASA. Article by Gillian Dohrn, UW News. University of Washington – December 17, 2025. Press release: NASA. Research article: Nature.

Careful reanalysis of data from more than a decade ago indicates that Saturn’s biggest moon, Titan, does not have a vast ocean beneath its icy surface, as suggested previously. Instead, a journey below the frozen exterior likely involves more ice giving way to slushy tunnels and pockets of meltwater near the rocky core. […]

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