Today's Image of the Day from the European Space Agency  features Seoul, the capital city of South Korea, and its surroundings. The image was captured by the Copernicus Sentinel-2 mission on February 21, 2023. "Situated some 50 km south of the North Korean border, the metropolitan area of Seoul appears as the grey area in the center of the image," says ESA. "The Han River runs through the city, and to the right of the image it can be seen partly covered by...