@cosmomyst · Post #587 · 28.12.2025 г., 22:21
🪐 Some gamma-ray bursts last less than two seconds and are thought to result from the collision of two neutron stars—ultra-dense remnants of massive stars that pack more mass than the Sun into a space the size of a city. In 2017, the galaxy NGC 4993, about 130 million light-years away, was the site of such a collision, allowing astronomers to observe both gamma rays and gravitational waves from the same cosmic event—a rare glimpse into the most violent mergers in the universe. ✨ #gamma-ray ⚡#neutronstar⚡#gravitationalwaves⚡#nasa⚡#galaxy⚡#stars⚡#astronomy⚡#universe⚡#cosmos⚡#space 👉subscribe Universe Mysteries 👉more Channels