NASA has selected 19 researchers to conduct ground-based research in space radiation biology and space radiation shielding materials. Sponsored by NASA’s Exploration Systems Mission Directorate, this research will use the NASA Space Radiation Laboratory (SRL) and the Alternating Gradient Synchrotron at the Department of Energy’s Brookhaven National Laboratory on Long Island, N.Y. The SRL provides beams of radiation that are the same type and energy as found in space. They will be used for studies in radiation physics and biology in order to accurately predict and manage radiation risk in space.