Signatures of alien technology could be how humanity first finds extraterrestrial life
- Written by Macy Huston, PhD Candidate in Astronomy and Astrophysics, Penn State
Astronomers have been looking for radio waves sent by a distant civilization for more than 60 years.Rytis Bernotas/iStock via Getty ImagesIf an alien were to look at Earth, many human technologies – from cell towers to fluorescent light bulbs – could be a beacon signifying the presence of life.
We are two astronomerswho work on the sear...





