A nearby Earth-sized planet offers a rare chance to study how atmospheres survive or disappear on rocky worlds.

Despite struggling to determine the atmospheres of rocky planets orbiting nearby stars, the JWST appears to have achieved ...

A visible line of planets has for weeks been the talk of astronomers and hobbyist stargazers who have sought to catch a sight of our solar system's worlds. Online chatter and a frenzy of media ...

Nearly all of the planets in the solar system are about to march through the night sky in a single-file line. This planetary alignment, sometimes called a planet parade, will include all of the solar ...