IMAP Illustration (IMAGE) NASA/Goddard Space Flight Center Caption IMAP will study the protective magnetic bubble that surrounds our solar system, called the heliosphere, and the particle acceleration that occurs across it. Credit NASA/Princeton/Johns Hopkins APL/Josh Diaz Usage Restrictions No restrictions. License Public Domain 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.