Look at this picture.

Tell me it isn't incredible. Click on the picture to enlarge. Look at how similar it is to humans... Simply Incredible...

Keeping in mind the Theory of Evolution, it has been thought for a long time that there could be no life without the power of the sun. All our life and energy comes from the Sun. Plants use the sun for life. Animals eat the plants. We eat the animals and the plants. It all starts with the Sun.

Recently we've discovered that there is life on Earth where there is no Sun light/energy and no Oxygen. In the deepest places under our oceans where the Earth's crust is thin and dividing, energy in the form of heat and chemicals spew out of vents from the Earth's core spills out into the freezing water.

Much like plants use photosynthesis to produce energy using the sun, small underwater creatures use chemosynthesis to live and thrive.

Europa a moon orbiting Jupiter has united Astronauts and Biologist in a way never seen before. From studies made of the moon, it is thought to have two very important properties capable of supporting life much like the deep oceans of our planet. The moon is covered in icy crust. Beneath this crust scientist suspect there might be (1) an ocean with deep vents spewing similar (2) heat and chemical energy. If this is true, there is a chance that life exists under the icy crust of Europa!

Finding life in our solar system would be the discovery of the century and would mean that life is bound to occur in the correct circumstance, Earth being one of those circumstances.