Something huge and invisible is making nearby stars vanish, scientists propose Suns that have gone missing may have been torn away by a dark matter monster An invisible cosmic behemoth might be tearing apart the closest star cluster to the Sun, leaving one side of the cluster eerily dark and devoid of stars, according to a new study. The culprit may be a dark matter substructure, a relic that contains the mass of 10 million Suns and is made of a mysterious non-luminous substance. The possible presence of this “Galactic lump” was detected in a new map that charts out...