white rainbow , the North Pole.白色彩虹, 北極 .

Sam Dobson 
Rare white rainbow lights up the North Pole... but on closer inspection the phenomena is actually a ghostly fog bow | Mail Online http://www.dailymail.co.uk/news/article-2073068/Rare-white-rainbow-lights-North-Pole--closer-inspection-phenomena-actually-ghostly-fog-bow.html