Earth-like Exoplanets in Habitable Zones: Promising Worlds, Uncertainties, and the Quest for Life

To the point

Several Earth-like exoplanets inhabit their stars’ habitable zones, such as Kepler-452b, Proxima Centauri b, and TRAPPIST-1e, offering tantalizing but uncertain possibilities for liquid water and life, with JWST atmospheric studies guiding future searches for biosignatures long after interstellar travel remains centuries away.

From Kepler-452b to Proxima Centauri b: Exoplanets that are just like Earth
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From Kepler-452b to Proxima Centauri b: Exoplanets that are just like Earth

Earth is the only planet we know of that harbors life, but it may not be alone in the universe. Scientists have discovered thousands of exoplanets, or planets orbiting other stars, and some of them are remarkably similar to our home world. These exoplanets are of great interest to astronomers and astrobiologists, who hope to find signs of life beyond our solar system. Here are seven exoplanets that are just like Earth, in terms of their size, composition, temperature, and habitability.Image: Canva