NASAさんのインスタグラム写真 - (NASAInstagram)「Cloud formations over the Pacific! ⁣⁣☁️☁️☁️ ⁣⁣ An astronaut on the @ISS took this photo on April 4, 2019, while the station was traveling near the southernmost reaches of its orbit over the South Pacific Ocean. The striking colors within the cloud formation are a result of the local sunrise. When the Sun is at a low angle (relative to the atmosphere and the space station), sunlight passes through a thicker slice of the atmosphere. This can enhance the red end of the visible color spectrum, leading to the pink hues visible at the center of the image. ⁣⁣ ⁣⁣ The astronaut who took this photograph sent a message to ask if this specific cloud formation had been a named tropical cyclone. However, because the weather system was short-lived, the storm dissipated before making landfall, and thus was not named. ⁣⁣ ⁣ Image Credit: NASA⁣ ⁣⁣ #clouds #spacestation #weather #nasa #astronautphotographs #cloudformations」9月17日 6時36分