This image, captured by the MODIS on the Terra satellite on January 28, 2008 shows the southern tip of Florida and the archipelago of islands that begin about 15 miles off its coast. The Florida keys, as they are called, sweep south-southwest to the Dry Tortugas at the westernmost end. The Dry Tortugas are uninhabited. Key West is the westernmost inhabited island.
The large landmass just south of Florida in this image is Cuba. Cuba is only 129 miles from Florida and is about the size of Pennsylvania. The Bahama islands are just visible on the right side of the image. The largest island, which you can see peaking out of the right side of the image, is Andros Island.
Florida, the Bahamas, and Cuba are all surrounded by a greenish blue glow, which is from the clouds of phytoplankton that are flourishing in the water.