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 Prasenjeet Yadav @prasen.yadav I'm a natural history and science photographer based in India, and I'm excited to bring you stories from this part of the world. A few years ago, I was in the Western Ghats covering the region's unique sky islands—the montane habitat formed by the hills that poke through cloud cover. This green meteor was caught during a time-lapse to demonstrate how these islands often float in a sea of urbanization. The camera was set at 15-second exposures for 999 frames, and this meteor showed up in one of the shots. A green meteor's hue comes from a combination of oxygen heating up around the meteor, and the mix of minerals ignited as the rock enters Earth's atmosphere. Follow me @prasen.yadav for more photos from the diverse states of India and parts of Central Asia.」7月6日 3時36分