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Mirror Earth

The Search for Our Planet's Twin by Michael D. Lemonick

According to one popular notion, everyone has a twin somewhere. Who knows, maybe the same is true for planets. Maybe there’s even a doppelgänger Earth orbiting at just the right distance from a sunlike star to support life. In his latest book, science writer Lemonick provides a behind-the-scenes look at the decades-long search for just such a planet. The endeavor, long considered a scientific back­water with little chance of success, is now one of the hottest fields in astronomy.

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