The search for alien life has moved from planets to moons. This video dives into the hidden, globe-spanning oceans beneath ...

High-energy particles zipping through the cosmos are harmful to life on Earth, but scientists think it could be food for potential alien life elsewhere. Saturn's moon Enceladus (shown here in a 2006 ...

If life exists beyond Earth, water may be the first clue. Water Worlds explores the planets and moons where liquid water ...

At a young age, we're told how the sun warms Earth and makes life possible. That idea sticks with most of us for life. But when we want to understand things more thoroughly and we dig more deeply, we ...