Every time I hear about life or water elsewhere in our solar system, I laugh. We have been searching for decades trying to use liquid water as a basis for life. We have only 1 source for "life as we know it"; Earth. Just because almost every species on the planet uses liquid water, we think that life uses water. We are wrong. Life can come in many shapes, sizes, colors, and elemental makeups. Biology does not care about what we think we know. Ignoring other possibilities because they don't fit our idea of what constitutes life is only going to stunt our knowledge. -------------------------------------------------- Some fun examples of biology givings zero shits: Scientists have found a microbe on Earth that breathes through metal. That's right, breathes through metal. Platypus: a mammal which lays eggs, feeds it young milk without a nipple, has poisonous spurs on males, and has the sense of electrolocation. Parietal eyes. Parthenogenesis in vertebrates. ---------------------------------------------------- If we look for life forms that don't fit our criteria, we might be surprised at what we would have missed otherwise. For all we know Jupiter has life forms flying around in its upper layers that we can't see but since Europa has liquid water, it gets all the focus.