Gliese 581 is a red dwarf star of spectral type M3V which hosts a planetary system, 20.5 light-years away from Earth in the Libra constellation. Its estimated mass is about a third of that of the Sun, ...

"Gliese 229B was considered the poster-child brown dwarf, and now we know we were wrong all along about the nature of the object. It's not one but two." A well-studied cosmic object has stunned ...

A long-standing astronomical mystery about the first-ever discovered brown dwarf has finally been solved by scientists. The brown dwarf, named Gliese 229B, was discovered in 1995 but has puzzled ...

Hundreds of papers have been written about the first known brown dwarf, Gliese 229B ... are actually smaller in radius than Jupiter. They'd look quite strange in our night sky if we had something ...

So the brown dwarf that three decades ago was named Gliese 229B is now recognized as Gliese 229Ba, with a mass 38 times greater than our solar system’s largest planet Jupiter, and Gliese 229Bb ...

A well-studied cosmic object has stunned astronomers. The "failed star" Gliese 229B has been revealed to be two so-called ...

Scientists confirm Gliese 229B is a pair of brown dwarfs, not one Gliese 229Ba and Gliese 229Bb complete their orbits in 12 days. New findings suggest there could be more hidden brown dwarf pairs ...

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This artwork highlights a pair of recently uncovered brown dwarf twins, named Gliese 229Ba and Gliese 229Bb. Gliese 229B, discovered in 1995, was the first-ever confirmed brown dwarf, but until now ...