Titan or Enceladus: Which Moon Could Hold Life?

What if one of the best places to search for the ingredients of life isn’t a planet, but a moon?

Titan, Saturn’s largest moon, has clouds, rain, rivers, lakes and seas. But instead of liquid water, its surface flows with methane and ethane in temperatures around -289°F.

NASA’s Dragonfly mission plans to explore this alien world using a nuclear-powered octocopter, flying across Titan and sampling its surface chemistry. One major destination is Selk Crater, where an ancient impact may have brought together important elements involved in prebiotic chemistry.

Then there’s Enceladus, a tiny icy moon hiding a global ocean beneath its surface. Powerful geysers blast material from that ocean directly into space, carrying salts, organic compounds and phosphorus.

Could Saturn’s moons contain some of the chemical building blocks needed for life?

Titan or Enceladus: which would you explore first?

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