SETI, or the Search for Extraterrestrial Intelligence, is a scientific effort aimed at discovering signs of intelligent life beyond Earth. Researchers use various methods, including radio telescopes, to listen for signals from distant civilizations, hoping to find evidence of communication from other planets. The initiative began in the 1960s and has since evolved with advancements in technology. SETI projects analyze vast amounts of data to identify potential signals that could indicate the presence of extraterrestrial beings. This quest not only expands our understanding of the universe but also raises profound questions about our place within it.