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🔵 What’s that blue glow surrounding a reactor? It’s a phenomenon known as Cherenkov Radiation. It happens when electrically charged particles, such as protons or electrons, travel faster than light in a clear medium like water. | U.S. Department of Energy Office of Nuclear Energy

9.1K views · 351 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

748K views · 10K reactions | Where does NASA's James Webb Space Telescope get its energy? From the #Sun! It uses a 20-foot solar array to convert sunlight to electricity, providing all the power the spacecraft needs to #UnfoldTheUniverse. Be on the lookout for Webb’s first images on July 12! | NASA Space Alerts | Facebook