Ask NASA Climate | January 27, 2010, 16:00 PST
Pick of the pics
Aland Islands, Finland
The Aland Islands are located in the Baltic Sea between eastern Sweden and southwestern Finland. They consist of the main island, Fasta Aland, which contains 90 percent of the population, and an archipelago to the east that is made up of over 6,500 islands. Approximately 25,000 inhabitants live on only 65 of the islands. This image was taken by the Landsat 7 satellite on April 19, 2003.