Universe Mysteries 🪐
@cosmomyst · Post #755 · 2026. 04. 29. PM 10:21
🪐 In the host galaxy of GRB 111209A, astronomers witnessed one of the longest-lasting gamma-ray bursts ever recorded—this explosion in the constellation Fornax blazed for over seven hours, far longer than most GRBs that usually last seconds to minutes. Scientists believe this extraordinary outburst came from the collapse of a rare, massive blue supergiant star, making GRB 111209A a record-breaker among cosmic fireworks. ✨ #gamma-rays ⚡#supergiants⚡#explosions⚡#nasa⚡#galaxy⚡#stars⚡#astronomy⚡#universe⚡#cosmos⚡#space 👉subscribe Universe Mysteries 👉more Channels