but aside from the small variations nasa is very excited about the new find. listen. an unfolding story. we have gotten closer and closer to finding a true twin like the earth. every step is important because it shows we re getting closer and closer, and that s current planet is the closest yet. reporter: the closest and the most compelling evidence yet that life once existed out of our solar system. signssigns of life of any kind? well, scientist says because the planet is 1.5 billion years older than earth it s likely there s no life because the aging sun is heating the surface and evaporating the oceans and because of the heat, the variety vapor is lost forever so while you might get a decent tan the surf wouldn t be great. nasa says because the planet so closely resembles ours it could be a peak into our future and that earth could some day become inhospitable to life. keep in mind, the kepler spacecraft that took this, that