"Radio Signals Reveal Thousands of Active Red Galaxy Hearts, Say Astronomers"

Astronomers have discovered thousands of red quasars emitting powerful radio signals, indicating a generation of younger active galaxies with supermassive black holes that have recently become more active. Red quasars, which appear red due to the presence of cosmic dust, emit stronger radio waves than their blue counterparts. The interaction between radiation outflows from the quasars and surrounding dust causes the emission of radio waves. The discovery of red quasars provides valuable insights into the evolution of galaxies and the relationship between quasar activity and galactic growth.