NASA finds 'Earth's bigger, older cousin'     Remember the name Kepler 452b. Because in our search to discover if we are alone in this vast and fascinating universe, a sole life-harboring world among countless dead and uninhabitable planets, we may finally have a true candidate for Earth 2.0. Its orbit, 384.84 Earth days and 5% more distant than our planet is from the Sun, places it right in its star’shabitable zone, where it is not too hot or cold for liquid water to form: the same region