This satellite image shows the Arrecife Alacranes, or Scorpion Reef, in the Gulf of Mexico. Five small islands can be seen along the western edge (at the bottom of the picture) of the coral formation, while the rest of the giant structure is submerged.
Several species of coral have grown together over thousands of years to build the reef. As well as the coral, the reef contains the remains of algae, foraminifera and molluscs.
Isla Perez, the third island from the right, is home to a lighthouse built in 1900 and a small human population.
The image was taken by a camera aboard Landsat 8 on November 5, 2014.
Originally published by Cosmos as Coral from above
Cosmos
Curated content from the editorial staff at Cosmos Magazine.
Read science facts, not fiction...
There’s never been a more important time to explain the facts, cherish evidence-based knowledge and to showcase the latest scientific, technological and engineering breakthroughs. Cosmos is published by The Royal Institution of Australia, a charity dedicated to connecting people with the world of science. Financial contributions, however big or small, help us provide access to trusted science information at a time when the world needs it most. Please support us by making a donation or purchasing a subscription today.