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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?