The galaxy’s most common stars may be missing a key ingredient for life: Long-lived moons. Most stars in our galaxy are small ...

For the first time, astronomers have found a planet the size of Earth around another star. The scientists, using a sophisticated NASA observatory that scans incoming light from stars, announced the ...

Rocky planets like our Earth may be far more common than previously thought, according to new research published in the ...

CAPE CANAVERAL, Fla. -- An eighth planet has been found in a faraway solar system, matching our own in numbers. Even more amazing, machines and not humans made the discovery. NASA joined with Google ...

Kepler-452b is one of the most Earth-like planets ever discovered, orbiting a star much like our Sun. Located over 1,400 light years away, it has sparked global fascination as a potential second home ...

NASA has discovered a new super-Earth that has a year only lasting a few hours. The exoplanet K2-141b, was found very close to its orange sun-like star, and has an orbital period of less than one ...

Space-watchers saw the handwriting on the wall months ago, but now it’s official: NASA’s Kepler spacecraft, by far the most successful planet-hunting telescope in history, isn’t coming back. Engineers ...