Astronomers have identified the clearest signs yet of an atmosphere around a rocky planet outside our Solar System, marking a major step in understanding extreme worlds. Using NASA’s James Webb Space ...

— -- Astronomers on Monday reported the discovery of an Earth-like planet outside the solar system whose size and distance from its own star put it in the "habitable" zone and make for a surface ...

One of the boldest dreams in modern astronomy is the search for Earth-like worlds beyond our solar system. These exoplanets may hold oceans, rocky ground, and even atmospheres rich in oxygen or ...

As telescopes have become more powerful, we’ve been finding tons of “exoplanets”—planets orbiting faraway stars. One such planet, known as exoplanet TRAPPIST-1 d, has intrigued astronomers looking for ...

The planet’s rotation fluctuates as it travels around the sun, and measurements suggest we’re losing more than a millisecond during the long days of summer. By Jacey Fortin This article was updated ...

Spotting Earth-like planets is nearly impossible with conventional telescopes, but researchers propose a bold fix: a rectangular design that can separate a planet’s faint glow from its blinding star.