A brown dwarf discovered 30 years ago is actually twins circling each other.
From @AssociatedPress: "Scientists have puzzled over the object known as Gliese 229B, the first known brown dwarf discovered 30 years ago. Brown dwarfs are sometimes called failed stars because they’re lighter than stars, but heavier than gas giant planets."
Here's the original study: https://www.nature.com/articles/s41586-024-08064-x