The first and most famous "failed star" discovered by humanity isn't one brown dwarf, but two! The duo comprising Gliese 229B are so tightly bound they orbit each other in 12 days.

The star, called Gliese 710, is headed for a close encounter with our Solar System, and we know that thanks to the ESA’s work on what it calls the Gaia Mission.

The exoplanet Gliese 12 b is tantalizingly close and moderately warm, situated just 40 light-years away around a red dwarf star. The potentially habitable planet could be a good place to search ...

Close stellar encounters could change the structure of our planetary system, potentially dooming Earth or other worlds to ...

Astronomers have made a surprising discovery about Gliese 229B, a well-known brown dwarf first identified nearly 30 years ago. Once considered a single "failed star," scientists have now revealed ...

The distance separating Gliese 12 and Gliese 12 b is just 7% of the distance between Earth and the sun, NASA said. The planet receives 1.6 times more energy from its star than Earth does from the sun.

An artistic conception of Gliese 12 b, which orbits a cool, red dwarf star 40 light-years away, from Earth. Credit: NASA/JPL-Caltech/R. Hurt (Caltech-IPAC).

Gliese 12b, an Earth-sized exoplanet that’s only 40 light years away, ... Light that is emitted from the star passes through the atmosphere of the planet, if it exists, ...

Gliese 12 b orbits around a central star named Gliese 12, which is a type of star known as a red dwarf. Red dwarfs are smaller, cooler and more abundant than the G-Type stars like our sun.

The planet, Gliese 514 b, could test the limits of where we can find Earth-like worlds. The planet spends 1/3 of its time in its star's habitable zone.