“Are we alone?” It’s the age-old question about life in the universe, one that astrobiologists and astronomers around the world are trying to answer.
While Earth is the only planet in our solar system that has an abundance of life, astronomers and space agencies are looking in our own backyard for signs that we are not alone. And many believe that the best places to search are the icy moons around two of the biggest planets, Jupiter and Saturn.
Currently, there are seven bodies in the outer solar system that are believed to have oceans beneath their crust: two of Saturn’s moons,
