Supermassive black hole stunts star growth in other galaxies

Artist’s concept of a galaxy with an active supermassive black hole millions to billions of times the mass of the sun – also known as a quasar – at its center. Among the brightest objects in the universe, quasars feed on infalling matter and unleash torrents of wind and radiation. A new study says they shape not only the galaxies in which they reside, but they can stunt star growth in nearby galaxies. Image via NASA/ ESA/ Joseph Olmsted (STScI)/ University of Arizona.

• Active supermassive...