Google has launched the Google Sky, this new addition to Google Earth enables viewers to check out the universe, from far galaxies light years, to planets and constellations. Google Sky, developed with some of the world's leading observatories, lets surfers tour a virtual cosmos at will. Now, users have the possibility to have a tour through the space and watch the stars from the comfort of their houses. To have this feature, you must download the new version of Google Earth.