Brown dwarfs are sometimes called "failed stars". They are born from interstellar clouds following processes closely related to the formation of normal stars. But brown dwarfs lack mass enough to light up nuclear reactions in their interiors. Thus, they cannot be considered true stars and in fact some properties reassemble those shown by giant planets. Uncovering proto-brown dwarfs, i.e., brown dwarfs in their very first evolutionary stages, is a long-sought hit. A recent study has found the best proto-brown dwarf candidate known to date. Calar Alto has contributed key data to this finding…
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The first brown dwarfs were discovered...
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