It’s true—the closest star to the Sun harbors an Earth-sized planet
An artist’s impression shows the planet Proxima b orbiting the red dwarf star Proxima Centauri. The double star Alpha Centauri AB also appears in the image between the planet and Proxima itself. ESO/M. Kornmesser An artist's impression of the view of the surface of the planet Proxima b orbiting the red dwarf star Proxima Centauri. ESO/M. Kornmesser...