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A Comet From Another Star Hints That Our Solar System Isn't One-Of-A-Kind

5 Dec 2019, 18:33 UTC
A Comet From Another Star Hints That Our Solar System Isn't One-Of-A-Kind
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The comet, 2I/Borisov, looks surprisingly like comets closer to home. It's a sign that the processes that formed the sun and planets are at work elsewhere in the universe. (Image credit: NASA, ESA and D. Jewitt (UCLA))

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