说明AEC-68-8415 JACKASS FLATS, NEVADA. . . the Phoebus 2A is shown at Test Coll “C” prior to a test. The Phoebus 2A nuclear rocket reactor has been developed for Project Rover, a program to develop a nuclear propelled rocket capable of interplanetary travel. The Rover program is administered by the Space Nuclear Propulsion Office under the joint sponsorship of the Atomic Energy Commission and the National Aeronautics and Space Administration. Credit: Bill Jack Rogers, Los Alamos Scientific Laboratory