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Astronomy

The Carbon Cycle on Enceladus and Its Implications for Life

Quick fact

NASA's Cassini spacecraft detected molecular hydrogen in Enceladus's plumes, a strong sign of hydrothermal activity that could supply chemical energy for life.

Why this is interesting

Beneath the frozen crust of Saturn's moon Enceladus, a hidden ocean churns with carbon-rich chemistry—could this cycle be the spark of life?