The below image is taken from ESA’s SENTINEL-3B. 

 

Antarctic Sunset - SENTINEL-3B
The image shows the sunset over the Weddell Sea off the coast of Antarctica.

The line of light and dark is the line between day and night. This picture was taken by the satellite’s ocean and land color instrument, with a resolution of 300m, 21 distinct bands, and a swath width of 1270 km.