Introduction Since the discovery of the first exoplanet in 1992, astronomers have identified thousands of planets orbiting distant stars. Among these, a select few stand out as potentially Earth-like —worlds with conditions that might support liquid water, stable atmospheres, and possibly even life. This article explores the 10 most Earth-like exoplanets discovered so far, ranked by their similarity to Earth in terms of size, composition, and location within their star's habitable zone (where liquid water could exist). We’ll examine their key features, potential for habitability, and the latest scientific insights about these alien worlds. 1. What Makes an Exoplanet "Earth-Like"? Not all exoplanets are created equal. To be considered Earth-like , a planet should meet several criteria: A. Located in the Habitable Zone The habitable zone (Goldilocks zone) is the region around a star where temperatures allow liquid water to exist. Too ...