ナショナルジオグラフィックさんのインスタグラム写真 - (ナショナルジオグラフィックInstagram)「Photo by @stephenwilkes | I took this while on assignment in Churchill, Manitoba, where I was photographing polar bears. I witnessed an extraordinary full moonrise and moonset. I’ve never seen this type of distortion in a moonset—the shape took on the outline of a hot-air balloon or a mushroom cloud. This is called an omega moon, after the Greek letter. To see more photos from my travels near and far, follow me @stephenwilkes. #daytonight #churchill #moonrise #canada」5月23日 15時39分