Asperatus clouds over New Zealand. Source. Credit: Witta Priester
Clouds can be some of the weirdest things in existence. This picture hasn't been altered, it is actually a rare form of Undulatus asperatus cloud that really does exist. This picture was taken in New Zealand where this stunning structure occurred. The origin of clouds such as these is not well understood, but then again, very little in meteorology is satisfactorily understood. When looking at structures like these, I have great sympathy for weathermen and women.