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I'd be very surprised if we saw oxygen. Photosynthesis took much longer to evolve on Earth than life did in the first place, and on Enceladus you have both a t
by Symmetry 3y ago
I'd be very surprised if we saw oxygen. Photosynthesis took much longer to evolve on Earth than life did in the first place, and on Enceladus you have both a thick layer of ice preventing sunlight from reaching liquid water and also a much dimmer Sun in the first place due to how far away Jupiter is.
- Sharlin 3y ago*Saturn, but yes. If there’s life, free oxygen would likely be incredibly toxic to it, just like it was to early life on Earth (and still is to some chemosynthesis-based ocean floor life).