Health Cosmic Burst Echo: New Discovery Reveals Hidden Gamma-Ray Explosions by Dr Natalie Singh - Health Editor February 27, 2026 by Dr Natalie Singh - Health Editor February 27, 2026 Unseen Cosmic Explosion Reveals New Clues About Gamma-Ray Bursts Astronomers have detected the radio afterglow of an extraordinarily powerful cosmic explosion – a gamma-ray burst (GRB) – whose initial burst … 0 FacebookTwitterPinterestEmail