Extraterrestrial life refers to any form of life that may exist beyond Earth. Scientists study various environments, such as Mars and the icy moons of Jupiter and Saturn, to find signs of life. The search for extraterrestrial life includes examining extreme conditions on Earth, where organisms thrive, to understand how life might survive elsewhere in the universe. The possibility of extraterrestrial life has fascinated humanity for centuries, inspiring countless stories and scientific inquiries. With advancements in technology, such as powerful telescopes and space missions, we are closer than ever to discovering whether we are alone in the universe or if other forms of life exist among the stars.