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Signs of planet detected around sun’s nearest neighbor star

Proxima Centauri companion orbits in habitable zone

illustration of the surface of Proxima b

A WORLD NEXT DOOR  Proxima Centauri casts a reddish glow over the surface of Proxima b (illustrated), the closest exoplanet to Earth, while two companion stars, Alpha Centauri A and B, appear as bright pinpricks of light.

M. Kornmesser/ESO

By Christopher Crockett

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