芬兰拉普兰地区上空的贝母云
2023年2月9日 Nacreous Clouds over Lapland Image Credit & Copyright: Dennis Lehtonen Explanation: Vivid and lustrous, wafting iridescent waves of color wash across this skyscape from Kilpisjärvi, Finland. Known as nacreous clouds or mother-of-pearl clouds, they are rare. But their unforgettable appearance was captured looking south at 69 degrees north latit...