What caused these beautiful, iridescent clouds in Sweden? And what makes them so special and rare? President Biden warns of 'oligarchy' as he bids farewell to five decades in politics 20,000-year ...

Similar to sun dogs and sun halos, clouds far up in the sky made of ice crystals, scatter sunlight in a way where a faint spectrum of colors is observed. Be sure to check back to see if your picture ...

A Space X launch from Vandenberg Space Force Base in Southern California produced a noctilucent cloud visible in the eastern ...