Why are Brown Dwarfs are Called 'Failed Stars'?
Failed Stars: Dim Lights in the Stellar Neighborhood Brown Dwarf The universe is a place of grand spectacles, with colossal stars burning bright and supernovae erupting in explosive splendor. But lurking in the cosmic shadows are celestial objects dubbed "failed stars, " a term not meant to diminish their existence but to describe their unique place in the stellar hierarchy. These objects, known as brown dwarfs, may not fulfill the classic image of a blazing star, but their existence sheds light on the delicate balance of forces governing stellar formation and challenges our understanding of the boundaries between stars and planets. Mass Matters: At the heart of the "failed star" title lies the concept of critical mass . For a celestial body born from a collapsing gas cloud to ignite and truly become a star, it needs sufficient mass to sustain the sustained nuclear fusion of hydrogen in its core. This fusion process generates immense heat and pressure