302K views · 6.3K reactions | The blue glow is called Cherenkov...

748K views · 11K 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

The Cherenkov Telescope Array Observatory (CTAO) is the world’s most powerful ground-based gamma-ray observatory. Built in collaboration with European Southern Observatory (ESO), CTAO is designed to detect the most energetic light in the universe: gamma rays. These gamma rays are released during the most violent cosmic events — exploding stars, supernovae, and extreme particle accelerators in space. Gamma rays travel across the universe at the speed of light. When they reach Earth, they collide