The only evidence of life that we are aware of occurs in our planet, but man continues to search outer space for signs of other life forms. From the time of the Viking Mission to Mars until the recent research into Jupiter’s satellites, science tries to find answers. A new field of science, astrobiology, is redefining and analyzing life on Earth and by doing so is creating the basis on which scientists of the future will work. If life is implicit in the mechanisms of the universe, then the response waits for us out there.