Discovered in 2016, a roughly Earth-sized planet orbiting our nearest neighboring star might be habitable. This artist's impression shows a view of the surface of the planet Proxima b orbiting the red dwarf star Proxima Centauri, the closest star to the solar system.
ESO/M. Kornmesser
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Martin Mull participates in "The Cool Kids" panel during the Fox Television Critics Association Summer Press Tour at The Beverly Hilton hotel on Aug. 2, 2018, in Beverly Hills, Calif.
Willy Sanjuan/Invision/AP
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