Ever wonder why the sky is blue, vs. say red, orange or purple? An effect called Rayleigh Scattering is part of the reason we ...

On a clear, sunny day, the sky above us often glows a brilliant blue, a sight so commonplace that many of us rarely stop to ...

Dorsey confirmed a Bluesky user's speculation that the name ties in to Twitter's bird mascot, the idea being the bird could fly even more freely in an open blue sky. Dorsey left the board in May ...