RBSP Spacecraft Conception (IMAGE) NASA/Goddard Space Flight Center Caption The two RBSP spacecraft will help study the Van Allen Radiation belts that surround Earth. Credit Johns Hopkins University Applied Physics Laboratory Usage Restrictions Use proper credit. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.