Why Is The Sky Blue? – Do You Know? Finally, a simple answer to every child’s question! Paolo Di Trapani, professor of optics from the University of Insubria, explains why the sky is blue. Share this video if it helped you to understand! Facebook Prev Article Next Article Discover Checkout these cool gadgets... Related Posts Get Excited – The Robots Are Evolving! The Science of Quantum Computing Explained in Under 2 Minutes Will The World Ever Run Out Of Water? How Did Earth Get Its Water? How many universes are there? Would winning the lottery make you happier?