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Question
is it possible that multicellular life could exist in europa, like tubeworms?
Since Europa has a global ocean of liquid water with greater volume than Earth's oceans, astrobiologists consider it to be an excellent place to look for extraterrestrial life forms. The closest analogous environment on Earth is probably the hot springs in the deep ocean, which support a rich biota. The biota near Earth's ocean hot spring derive their energy from chemical processes that are, in turn, driven by heat from the Earth's interior. If similar conditions exist on Europa, similar life forms, perhaps including creatures like the tube worms, may exist there. However, this is today just speculation. We do not have any way at present to determine if Europa has such hot springs, let alone to search for life there. David Morrison
NAI Senior Scientist
October 12, 2006
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