World's Largest Transparent Spherical Neutrino Detector: Water Filling Stage FriendsofNASA.org: JUNO, the world's largest transparent spherical neutrino detector, started filling with ultrapure water on Dec. 18, 2024, signifying that its construction has reached its last critical stage. Since neutrinos—tiny, almost weightless particles—rarely interact with ordinary matter, they can easily zip through our bodies, buildings or the entire Earth without being felt, hence earning the nickname "ghost

9.1K views · 352 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