Transiting circumbinary planets Kepler-34 b and Kepler-35 b

Most Sun-like stars in the Galaxy reside in gravitationally bound pairs of stars^{1, 2} (binaries). Although long anticipated^{3, 4, 5, 6, 7, 8}, the existence of a ‘circumbinary planet’ orbiting such a pair of normal stars was not definitively established until the discovery⁹ of the planet transiting (that is, passing in front of) Kepler-16. Questions remained, however, about the prevalence of circumbinary planets and their range of orbital and physical properties. Here we report two additional transiting circumbinary planets: Kepler-34 (AB)b and Kepler-35 (AB)b, referred to here as Kepler-34 b and Kepler-35 b, respectively.