Quasars: Cosmic Beacons… or Galactic Communication Signals?
In the distant universe, there are objects so bright that they outshine entire galaxies. They are called quasars, short for quasi-stellar radio sources, and they are among the most powerful phenomena known to astronomy. A single quasar can emit more light than a trillion stars. To observers on Earth, they often appear as tiny points of light—like stars—but they lie billions of light-years…









