New research on ‘Death Star’ that looks like a cosmic pinwheel reduces gamma-ray burst threat to Earth The cosmic pinwheel that astronomers feared could one day shower Earth with lethal gamma rays may not be as dangerous as once thought. Astrobitica March 21, 2025 (Last updated: March 21, 2025) 1 minute read The cosmic pinwheel that astronomers feared could one day shower Earth with lethal gamma rays may not be as dangerous as once thought. About the Author Astrobitica Administrator Visit Website View All Posts Post navigation Previous: Saturn’s iconic rings will ‘disappear’ this weekend. Here’s whyNext: Cosmic anomaly hints at frightening future for Milky Way