Astronomers discover most energetic gamma-ray burst ever -- ScienceDaily - https://www.sciencedaily.com/releases/2019/11/191120131334.htm?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%253A+sciencedaily%252Fspace_time%252Fastrophysics+%2528Astrophysics+News+--+ScienceDaily%2529
