Question. The search for extra-terrestrial _____ has looked for many different signs of alien life, from radio broadcasts to laser flashes, without success. However, newly published research suggests that _____ phenomena called fast radio bursts could be _____ of advanced alien technology. Specifically, these _____ might be leakage from planet-sized transmitters _____ interstellar probes in distant galaxies.
powering mysterious evidence bursts intelligence
