Our society is increasingly dependent on technologies susceptible to harmful conditions in space; e.g., Galaxy 15, a $250M telecommunication satellite in geosynchronous orbit, failed to operate in 2010 due to a space storm, and its recovery operation cost about $3.5M. Predicting space weather hazards remains a big space physics challenge due to the complex multi-scale nature of the magnetosphere. SHIELDS (Space Hazards Induced Near Earth by Large Dynamic Storms) addresses this challenge.