Scientists analyzing old data from NASA's Kepler Space Telescope have discovered an Earth-size exoplanet candidate that looks ...

Scientists have discovered more than 6 000 planets that orbit stars other than our Sun, known as exoplanets. More than half ...

When astronomers announced Kepler-452b, they were not just adding another distant world to a growing catalog. They were ...

A huge "super-Earth" with an extreme climate that results in it being habitable for only part of its orbit has been discovered orbiting a star 2,472 light years away. And the most remarkable thing is, ...

Discovered by NASA’s Kepler spacecraft, Kepler-10c is a massive exoplanet that challenges existing theories about planetary formation and habitability. Dubbed a “mega-Earth,” this planet’s ...

Discovered by volunteer scientists, this alien planet is out of synch with its siblings ...

This artist's impression shows the star TRAPPIST-1 with two planets transiting across it. ExoMiner++, a recently updated open ...

Astronomers and philosophers have long speculated on the possibility of planets orbiting distant stars. In the 1990s the first of such objects, now called exoplanets, were discovered by astronomers.