Exoplanets: Could Life Exist Beyond Earth?

Are we alone in the universe? The search for exoplanets—planets orbiting stars beyond our solar system—is helping scientists get closer to an answer. From hot Jupiters to Earth-like worlds, thousands of exoplanets have been discovered so far. Star Gazers host Trace Dominguez reveals how astronomers find these distant worlds and what they could tell us about what’s beyond our galaxy.