SOCORRO, N.M., April 30 (UPI) -- U.S. astronomers observing the sky with a multidish radio telescope say they've identified sources for nearly all radio waves coming from distant galaxies.
Fixed on one small patch of sky for more than 50 hours, the Very Large Array telescope near Socorro, N.M., determined about 63 percent of the cosmic background radio emission comes from galaxies with black holes feeding at their centers, and the remaining 37 percent comes from galaxies rapidly forming stars.