Extraterrestrial life forms refer to any living organisms that may exist outside of Earth. Scientists search for these life forms in various environments, such as on other planets, moons, and even in the vastness of space. The study of extraterrestrial life includes examining extreme conditions on Earth, where some organisms thrive, to understand how life might survive elsewhere. The search for extraterrestrial life often involves exploring celestial bodies like Mars and the icy moons of Jupiter and Saturn. Missions like the Mars Rover and telescopes that detect exoplanets help researchers gather data. While no definitive evidence of extraterrestrial life has been found, the possibility continues to intrigue scientists and the public alike.