Astronomers have discovered thousands of planets orbiting nearby stars, and the search continues to uncover more. The question of whether any of these exoplanets are habitable, capable of supporting liquid water on their surfaces, is a complex one. Scientists must consider factors such as the star's radiation, the planet's mass and composition, and the presence of an atmosphere. The odds of finding an Earth-like exoplanet are difficult to predict, but astronomers are hopeful that future observations will reveal habitable worlds beyond our solar system.
