The search for extraterrestrial life involves scientific efforts to find signs of life beyond Earth. Researchers study planets and moons in our solar system, such as Mars and Europa, which may have conditions suitable for life. They also analyze distant exoplanets in the habitable zone of their stars, where temperatures could allow liquid water. Scientists use various methods, including radio telescopes to listen for signals from intelligent civilizations. Missions like SETI (Search for Extraterrestrial Intelligence) aim to detect any artificial signals. The search continues to expand with advancements in technology and our understanding of life's potential in the universe.