Fast-forward to today: we’ve gone from one lonely planet to a catalog of thousands. The pace is accelerating. In 2015, NASA’s ...

Scientists have found thousands of planets outside our solar system, called exoplanets, throughout the galaxy. This artist’s ...

In May 1964, Arno Penzias and Robert Wilson were testing how radio waves bounced off balloon satellites developed by Bell ...

That could have not been the case; it could have been that the solar system was a weird fluke.” The first exoplanets were ...

NASA has confirmed 6,000 exoplanets, marking a major leap in space exploration and the search for life beyond Earth.

Hot, small and old—exoplanet TOI-561 b is just about the worst place to look for alien air. Scientists using JWST found it ...

Astronomers found an atmosphere where they least expected it—clinging to an exoplanet that’s too small, too hot and too old ...

For centuries, people have wondered whether we’re alone in the universe. No one’s shaken hands with aliens yet, but scientists […] ...

May the faint chemical signals drifting through the atmosphere of a distant world be the long-sought message that we are not ...

UPDATE for 11 am ET: NASA's Perseverance rover has discovered sediment formations that could be signs of possible biosignatures on Mars, but they could also have a non-biological source. Read our ...

“These microbes, if we found them, would be anaerobic,” Schwieterman explains in the release, meaning the microscopic ...

Using NASA's Transiting Exoplanet Survey Satellite (TESS), astronomers have discovered two rocky exoplanets orbiting a nearby K-type star, known as TOI-2322. The newfound alien worlds are comparable ...