At some point in our lives, we gaze up at the night sky and wonder if we are all alone in the universe. With trillions and trillions of stars up there, most with very their own solar systems, one would think that there is virtually an unlimited number of chances for the spark of life to kick off. We don’t even have to look to the stars to wonder if life originated on another world, we can look in our very own backyard — Mars and Jupiter’s moon Europa both offer a tantalizing chance...
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