Astronomers are actively searching for Earth-like planets, with thousands of exoplanets now confirmed. While Proxima Centauri b is the closest rocky planet in a habitable zone, its true Earth-likeness ...

A newly identified planet candidate, HD 137010 b, looks strikingly Earth-like in size and orbit — but it may be colder than Mars due to its dimmer star. If it has a thick enough atmosphere, though, ...

Researchers have pinpointed a super-Earth in the habitable zone of a nearby M-dwarf star only 18 light-years away. Sophisticated instruments detected the planet’s gentle tug on its star, hinting at a ...