Is Life More Likely Under Twin Suns?

Planetary systems around binary stars may have the advantage when it comes to habitability

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Earth is a world teeming with life; it fills the oceans, smothers the land and soars through the atmosphere. A vibrant biosphere of microorganisms has permeated deep into the planet, while complex, multicellular life forms such as trees and insects cover the surface. In contrast, none of the other planets in the Solar System appear to be alive.