We're finding extremophiles in all sorts of places we didn't expect. Radiation-resistant bacterial spores are hardly outside the realm of possibility - we've already found some.
Yes, but context. They're not likely to have evolved inside the relative oasis of Europa's oceans (or put differently, they're not likely to have retained any extremophile traits they might have once had).
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We're finding extremophiles in all sorts of places we didn't expect. Radiation-resistant bacterial spores are hardly outside the realm of possibility - we've already found some.
Yes, but context. They're not likely to have evolved inside the relative oasis of Europa's oceans (or put differently, they're not likely to have retained any extremophile traits they might have once had).
Some water is clearly getting to the surface. If there's life, at least some of it is being exposed to decent levels of radiation.