Goddard-Led GEMS Mission to Explore the Polarized Universe

An exciting new astrophysics mission led by NASA's Goddard Space Flight Center in Greenbelt, Md., will provide a revolutionary window into the universe. Named the Gravity and Extreme Magnetism Small Explorer (GEMS), the satellite will be the first to systematically measure the polarization of cosmic X-ray sources. "To date, astronomers have measured X-ray polarization from only a single