If you want to believe, now is the time: the hope that we might one day stumble upon alien life is greater than it ever was. No, it’s not going to be little green men speeding through space in flying disks—more likely microbes or primitive bacteria. But a discovery like that would nevertheless be a sign that we are not alone in the universe—that life elsewhere is a possibility.
Image: An illustration of Cassini diving through plumes erupting off Europa's surface. NASA/JPL-CALTECH
