Titan's Habitable Potential: A Tiny Biosphere?
2025-04-10
A new study assesses the likelihood of life on Titan, Saturn's largest moon. Using bioenergetic modeling, researchers found that Titan's subsurface ocean might support lifeforms consuming organic matter, but the total biomass could be only a few kilograms—equivalent to a small dog's mass. This suggests that even if life exists on Titan, it would be extremely scarce, making its detection a challenging task. The researchers conclude that Titan's uniquely rich organic inventory may not be as readily available to support life as intuitively thought.