Artist’s concept of how rocky, potentially habitable worlds elsewhere in our galaxy might appear. Data gathered by telescopes in space and on the ground suggest that small, rocky planets are

New research suggests that Ariel, a moon of Uranus, might have once harbored an ocean over 100 miles (about 170 kilometers) deep. Credit: NASA/JPL-Caltech/PSI/Mikayla Kelley/Peter Buhler Growing evidence suggests that

An artistic rendering of a dust and gas disk encircling the young exoplanet, CT Cha b, 625 light-years from Earth. Spectroscopic data from NASA’s James Webb Space Telescope suggests the

IRAS 16293-2422 b — European Southern Observatory Comets have similar compositions to interstellar medium ices, suggesting at least some of their molecules maybe inherited from an earlier stage of evolution.