RT @NASAKepler: Kepler data tells us to expect at least one habitable zone, Earth-size planet orbiting an M-type star within 10 light-years
#ProximaCentauri
RT @NASAKepler: Kepler data tells us to expect at least one habitable zone, Earth-size planet orbiting an M-type star within 10 light-years
#ProximaCentauri