Kepler 22b: An Almost Earth Orbiting an Almost Sun (Dec 7 2011) Illustration Credit: NASA / Ames / JPL-Caltech It's the closest match to Earth that has yet been found. Recently discovered planet Kepler 22b has therefore instantly become the best place to find life outside our Solar System. The planet's host star, Kepler 22, is actually slightly smaller and cooler than the Sun, and lies 600 light-years from Earth toward the constellation of the Swan (Cygnus). #astronomy
Top 5 Habitable Alien Planets - here we have examples of planets located within the habitable zone, for just one star. There are billions of stars out there. So the idea of the non-existence of extra-terrestrial intelligent to be highly absurd.