BROADCASTS.com

Europa, second closest moon to Jupiter, is slightly smaller than Earth's moon, and one of the most smoothest objects in the solar system.

It's thought to harbour a global ocean 100 Km thick. That's twice as much water than on Earth. It's covered with ice 25 KM thick. The surface ice has cracked like an eggshell all around the surface.

Just like we learned through astronomy that the Earth was not the center of the Universe, odds are good that we will discover that the Earth is not the center of all life in the Universe either.

Life can be transported from one planet to another, no space ship required.