"I'll always remember the first time I saw those iridescent clouds and was sure at first it was some color artifact." ...

They are usually spotted just before dawn or just after dusk, when the sun is between 1 and 6 degrees below the horizon, meaning these clouds receive sunlight from below the horizon and reflect it ...

NASA’s Curiosity rover captured stunning twilight images of Martian clouds, revealing iridescent red and green tinges. These ...

A beautiful sunset often brings to ... for a few hundred miles to the west there isn’t any cloud because the sunlight’s getting through. "Weather takes a while to get to you and if the weather ...