SPOKANE, Wash. — Everyone loves rainbows, right? Well these rainbow clouds around Spokane have a few of us wondering how they form and what makes them different from the traditional rainbow. It ...

Nacreous clouds also known as polar stratospheric clouds have been appearing across northern skies. We've rounded up some of the best photos of these rare 'rainbow clouds'.

The best place to see a fire rainbow is in a place that has a mid latitude and is close to the equator. However, it also depends on weather conditions so the right type of cloud also has to be in ...