No atmosphere found at faraway Earth-sized world(1/2)

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)