It’s #WorldSpaceWeek! Did you know observing Earth at night from the International Space Station can tell us a lot about our home planet? Researchers use astronauts’ images—like this one—to study urban night lighting, atmospheric processes, storms, and more. Image description: The vibrant night lights of coastal cities along the Mediterranean Sea, from Spain to Italy in Europe and Algeria to Lybia in Africa, are pictured from the International Space Station as it orbited 262 miles above Barcelona. Peeking in at the bottom of the image is Mallorca Island, next to it Minorca. The Italian islands of Sardinia and Sicily and the French island Corsica are also visible. Above Earth, stars glitter in the night sky. #nasa #spacestation #earthfromspace #mediterraneansea #europe #africa #nightlights #citiesatnight #earth #international #space #station