The NASA Kepler Spacecraft has discovered more than 2,000 planets which have been confirmed to be orbiting distant stars. It performs this remarkable feat by imaging more than 145,000 stars simultaneously to observe and measure the tiny dips in light which occur as a planet passes in front of its star. Astronomers have long known that many of the solar systems in the Milky Way have more than one star. To investigate the possibilities for life in a double star system, Dr Max Popp a scholar at Princeton University and Dr. Siegfried Eggl of Germany's Max Plank Institute substituted the real giant planet orbiting the stellar pair Kepler 35A and B with an Earth sized one orbiting the Kepler AB pair with periods between 341 and 380 days. Their detailed analysis is published in the journal Nature Communications.