Number 37 (Story #3), June 5, 1991 by Phillip F. Schewe and Ben Stein QUASARS MAY BE HIDDEN in certain radio galaxies, such as Cygnus A, not previously known to harbor quasars. In some theories, all active galactic nuclei are thought to contain quasars surrounded by donut-shaped clouds of dust and gas which (if the viewing angle from Earth were edge-on) would obscure the quasar at visible wavelengths. Stanislav Djorgovski of Caltech has studied Cygnus A at several infrared wavelengths. Speaking at the recent meeting of the American Astronomical Society in Seattle, he said that the longer wavelength observations reveal a compact source---perhaps a quasar, considering the amount of energy emitted from there at radio wavelengths---at the galactic center. (Science News, 1 June 1991.)