[Artist Concept] With two suns in its sky, Luke Skywalker’s home planet Tatooine in «Star Wars» looks like a parched, sandy desert world. In real life, thanks to observatories such as NASA’s Kepler space telescope, we know that two-star systems can indeed support planets, although planets discovered so far around double-star systems are large and gaseous. Scientists wondered: If an Earth-size planet were orbiting two suns, could it support life?
It turns out, such a planet could be quite hospitable if located at the right distance from its two stars, and wouldn’t necessarily even have deserts. In a particular range of distances from two sun-like host stars, a planet covered in water would remain habitable and retain its water for a long time, according to a new study in the journal Nature Communications.
This artist’s concept shows a hypothetical planet covered in water around the binary star system of Kepler-35A and B.
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