Kepler 47 is a space observatory system launched by NASA to discover Earth-like planets orbiting other stars. Scientists using Kepler Space Telescope have discovered multiple planets orbiting a binary star.
Astronomers have confirmed that about 700 planets beyond our solar system as of early 2012, but the latest statistical analysis suggests that our galaxy has more 100 billion alien worlds.
The Kepler-47 family seems to be more complex, with at least two planets circling a pair of stars that whirl around each other every 7.5 days. Flying around the duo are planets Kepler-47b, which orbits in 49.5 days, and Kepler-47c, which takes 303 days to circle the parent stars. The inner planet is about three times the size of Earth and too close to its parent stars to support life.
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