223K views · 437 reactions | Why do you see a blue glow inside of a reactor? | International Atomic Energy Agency (IAEA) | Facebook

9.1K views · 350 reactions | The story of searching for intelligent life in the universe: planet.ly/SETI Special thanks to instagram.com/ryanlapse for sharing his amazing footage from the Allen Telescope Array in Hat Creek, CA  | The Planetary Society | Facebook

6.1K views · 303 reactions | WATCH  : Why do you see a blue glow inside of a reactor? The International Atomic Energy Agency (IAEA) explains… | U.S. Department of Energy Office of Nuclear Energy | Facebook

23K views · 588 reactions | #OnThisDay in 1904, Pavel Cherenkov was born. He's the man who first discovered what this blue glow was surrounding a reactor core. Today it's called Cherenkov radiation — a phenomenon that happens when electrically charged particles, such as protons or electrons, travel faster than light in a clear medium like water. #nuclear #cleanenergy | U.S. Department of Energy Office of Nuclear Energy | Facebook