Scientists, alien hunters study mysterious signal from nearby star
Though detecting radio signals from space happens regularly, they almost always have a mundane origin. But this signal's direction of origin and frequency changes have scientists excited.
The planet Proxima b orbiting the red dwarf star Proxima Centauri, the closest star to our Solar System, is seen in an undated artist's impression released by the European Southern Observatory August 24, 2016.(photo credit: ESO/M. KORNMESSER/HANDOUT VIA REUTERS)ByAARON REICHUpdated: