Tracing the History of Starlight with NASAs Fermi Mission

Scientists using data from NASA s Fermi Gammaray Space Telescope have measured all the starlight produced over 90 percent of the universe s history. The analysis, which examines the gammaray output of distant galaxies, estimates the formation rate of stars and provides a reference for future missions that will explore the stillmurky early days of stellar evolution. One of the main goals of the Fermi mission is to assess the extragalactic background light (EBL), a cosmic fog composed of all the ultraviol