Potentially habitable planets are celestial bodies that may have conditions suitable for life as we know it. These planets typically exist in the habitable zone of their stars, where temperatures allow for liquid water to exist on their surfaces. Factors such as atmosphere, size, and distance from their star play crucial roles in determining their habitability. Astronomers use various methods to identify these planets, including transit photometry and radial velocity. Some notable examples include Proxima Centauri b and Kepler-186f. Research continues to explore these worlds, as discovering life beyond Earth could significantly impact our understanding of the universe.