Space
How Do We Search for Extraterrestrial Intelligence? SETI Explained
The search for extraterrestrial intelligence (SETI) has listened for technological signals since Project Ozma in 1960. It now spans radio telescopes, laser searches, and surveys for other technosignatures. No confirmed signal has been found, and the best-known candidates, from the 1977 Wow! signal to BLC1, remain unexplained or were traced to interference.