Study Says 40 Billion Planets In Our Galaxy Could Support Life | WAMU 88.5 - American University Radio
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Study Says 40 Billion Planets In Our Galaxy Could Support Life

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A new study in the Proceedings of the National Academy of Sciences finds that roughly 1 in 5 stars, like our own sun, have an Earth-like planet orbiting around it. That's about 40 billion planets that could support life in the Milky Way galaxy. Melissa Block talks to co-author Geoff Marcy, an astronomy professor at the University of California-Berkeley, about the latest numbers.
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