A blue star with a smaller blue star
Artist's impression composed of a star with a disc around it (a type-Be "vampire" star; foreground) and its companion star that has been stripped of its outer parts (background).
  • Type-Be stars, nicknamed "vampire" stars, are believed to strip the mass of a nearby star. 
  • Scientists are trying to figure out how this happens. 
  • New research shows that a third star might be facilitating the mass transfer.

Massive "vampire" stars that feast on their celestial companions could be assisted by a third, hidden star, new research in the peer-reviewed journal Monthly Notices of the Royal Astronomical Society found.