Astronomy
The Stability of the Habitable Zone in Binary Star Systems
Quick fact
About half of all Sun-like stars are in binary or multiple star systems, yet the first confirmed circumbinary planet, Kepler-16b, orbits two stars and lies within the system's habitable zone for part of its orbit.
Why this is interesting
You might think a planet with two suns would be a wild place—but some binary star systems may actually offer stable homes for life. How can that be?