<![CDATA[ "Failed star" brown dwarfs may get a second chance to shine by colliding and merging to birth a new star. ]]>
Brown dwarfs are substellar objects that are not massive enough to sustain hydrogen fusion in their cores, which is the defining characteristic of true stars. They occupy the mass range between the heaviest gas giant planets and the lightest stars, typically between 13 and 80 times the mass of Jupiter.
Stellar mergers occur when two stars collide and combine to form a single, more massive star. This process can lead to the creation of new stars and can significantly influence the dynamics of star clusters and galaxies.