Scientists look at icy moons in search of alien life
A growing body of research suggests icy moons around Saturn and Jupiter may be the best candidates for finding life beyond Earth
Mars once seemed the best candidate for finding alien life in our solar system. These days though, scientists think icy moons like Europa and Enceladus are more likely to harbor living creatures than the Red Planet.
That's because there's growing evidence suggesting some moons have vast oceans of water flowing under their icy surfaces.