SUMMARY: A backdrop in many science fiction stories is to have multiple suns in the sky. Astronomers have now found such a world, called HD 188753 Ab. Our heroes couldn't set foot on this planet, though, since it's a "hot jupiter"; roughly the mass of Jupiter, but orbiting its parent star every 3.3 days. The other two stars in the system take 25.7 years to orbit the main star (about the distance from the Sun to Saturn), and spin around each other every 156 days,
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