Artist’s rendering of binary system Kepler-47, with outer planet Kepler-47c
in the foreground and inner planet Kepler-47b in the bottom right corner
Growing up in a binary star system can be tough. As the system’s two suns orbit each other, they exert strong gravitational pressures capable of pushing away young planets or sending them careening into one another. It wasn’t until last year that astronomers found the first evidence of a world orbiting two stars. Now new data has revealed that the binary system Kepler-47 goes one step further: it contains not one but two planets.