الوصفATOMICS INTERNATIONAL North American Rockwell Corporation 8900 DeSoto Avenue Canoga Park, California 91304 FOR IMMEDIATE RELEASE NAI-14 NUCLEAR SPACE POWER — Technician R. F. Knowles inserts fuel element into core vessel of SNAP 8DR, compact nuclear reactor system being developed by Atomics International Division of North American Rockwell Corporation for the U. S. Atomic Energy Commission, as a means to supply power on the moon or for orbiting spacecraft. With most of 211 fuel elements now loaded, criticality (sustained nuclear reaction) has been attained. SUBJECT: SNAP 8DR Criticality