Modern telescopes, such as the James Webb Space Telescope, suggest that habitable planets are common. If some of these planets harbor life, we may soon detect signs of it.
Scientists have been searching for signals and other evidence from space for decades, but no definitive messages from intelligent civilizations have been received.
In 1961, American astronomer Frank Drake developed the Drake Equation, a formula designed to estimate the number of intelligent civilizations in our galaxy. The equation takes into account various factors, helping scientists understand the likelihood of encountering extraterrestrial life.