Eric Walker added NASA detects the most powerful cosmic gamma-ray burst ever discovered and NASA’s Swift, Fermi Missions Detect Exceptional Cosmic Blast | NASA to GRB 221009A, and added GRB 221009A to Gamma-ray bursts (GRB)

Eric Walker added 2022-10 GRB 221009A to Gamma-ray bursts (GRB), and added Gamma-ray bursts (GRB) to Gamma rays

Eric Walker added 2002 INTErnational Gamma-Ray Astrophysics Laboratory (INTEGRAL) and Gamma-ray bursts (GRB) and a number of links to Gamma rays, and added Gamma rays to Photons and light