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 all has to do with refraction.

Strange "rainbow clouds" that look like a colorful portal to another dimension have recently appeared across northern skies. These nacreous clouds, also known as polar stratospheric clouds, are ...

Scientists call the spectacle “rainbow clouds” or “iridescent clouds.” The video , credited to Orawan Thongchinda and shared on social media, noted the phenomenon wowed onlookers near ...

Arctic observers got a rare festive treat when rainbow-colored clouds appeared in the skies. So-called polar stratospheric clouds were seen over Norway, Sweden, Finland, Alaska, and Scotland.