Abstract :
This report, prepared in April, 1959, summarizes the objectives of the space sciences program of the U. S. National Aeronautics and Space Administration and the immediate and long-range plans for carrying the program out. The report is divided into several broad areas: atmospheres, ionospheres, energetic particles, electric and magnetic fields, gravitational fields, astronomy, and biosciences. Included in the discussion is a review of present knowledge and existing problems in each of the above areas.
