The scientists suspected Gliese 229B might be twins, but "to evade notice by astronomers ... These observations, taken over five months, showed that the brown dwarf duo, now called Gliese 229Ba ...

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 ...