Number 100 (Story #1), October 23, 1992 by Phillip F. Schewe and Ben Stein HIGH-VELOCITY PULSARS , neutron stars born in supernovas and flung out of the plane of the galaxy at velocities greater than 800 km/sec, may well be contributing to the gamma-ray burst emissions measured by the orbiting Gamma Ray Observatory. The recent GRO mapping of the burst population found an isotropic distribution, thus challenging an earlier supposition that gamma bursts came primarily from pulsars, which were believed to reside mostly in the galactic plane. Hui Li and Charles Dermer of the University of Texas suggest that gammas from high-velocity pulsars high above the galaxy disk could account for the burster pattern. Others have argued that some or all of the gamma bursters are extra-galactic. (Nature, 8 October 1992.)