Moon's Gamma-Ray Glow Outshines the Sun in NASA Fermi Images

NASA's Fermi Gamma-ray Space Telescope snapped images of the moon's gamma-ray glow, making it appear brighter than the sun. Italy's National Institute of Nuclear Physics scientists are using the moon as a 'space-based particle detector' to study cosmic rays.
Published: 6:04 AM EDT August 16, 2019
Updated: 4:16 PM EDT August 15, 2019