This illustration provided by the European Space Agency depicts what the exoplanet TRAPPIST-1 b could look like. (Photo/Agencies)
The Webb Space Telescope has found no evidence of an atmosphere at one of the seven rocky, Earth-sized planets orbiting another star.
This image provided by NASA/JPL-Caltech shows an artist's conception of what the surface of the exoplanet TRAPPIST-1f may look like, based on available data about its diameter, mass and distances from the host star. (Photo/Agencies)