Number 14 (Story #4), December 27, 1990 by Phillip F. Schewe and Ben Stein THE ASTRO OBSERVATORY , riding on board the Space Shuttle Columbia, found new evidence for the existence of black holes. Measurements included intense x rays, characteristic of matter accreting onto a supermassive object, from the galaxy Markarian 335, and the ultraviolet spectra of various other galaxies and quasars. A number of problems shortened the Shuttle mission, and astronomers were distressed that NASA has not yet scheduled another flight for Astro. (Science News, Dec. 15, 1990.)