Why don't more Tatooine-like exoplanets exist in our Milky Way galaxy? Astronomers might have an answer

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It's one of the most instantly recognizable scenes in cinematic history: Luke Skywalker gazes at a double sunset to the haunting melody of a mournful French horn. And while "Star Wars" may take place in a galaxy far, far away, planets orbiting binary stars actually do exist in the Milky Way. Yet mysteriously, there are not as many as scientists expect — and new research might explain wh