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⭐ Stars & Galaxies
Black Holes
Regions where gravity is so strong that even light cannot escape; laboratories for extreme physics
Universe 🌌 1916 Stars & Galaxies
Key Facts
- 1
Predicted by Einstein's General Relativity (1916); first real image: M87* black hole (April 2019, Event Horizon Telescope)
- 2
Stellar black holes form when massive stars collapse; supermassive black holes (millions–billions of solar masses) sit at galaxy centres
- 3
Sagittarius A*: Milky Way's central supermassive black hole, 4 million solar masses; 2022 Nobel Prize for its discovery
🌌 Did you know? The first image of a black hole (Messier 87, 2019) took 8 telescopes, 200+ scientists and a petabyte of data
Quick Reference
Category
Stars & Galaxies
Region
🌌 Universe
Year / Era
1916
About
Regions where gravity is so strong that even light cannot escape