A NASA veteran’s multi-year survey of over 1,300 Sun-like stars has discovered several mysterious fast pulses of light that defy traditional cosmological explanations.

Part of a new SETI (Search for Extraterrestrial Intelligence) approach that scans the cosmos for signs of technologically advanced non-human intelligences employing light pulses instead of radio signals to communicate, called ‘optical SETI’, the detections could unveil previously misunderstood natural phenomena or may represent actual extraterrestrial communications.