
QUICK FACTS
Where is it? Rowley Shoals, Australia [-17.32117355, 119.26473330]
What's in the photo? From left to right; Imperieuse Reef, Clerke Reef and Mermaid Reef
Who took the photo? An unnamed astronaut on board the International Space Station
When was it taken? Oct. 18, 2011
This striking astronaut photo shows a unique chain of three atolls lined up side-by-side off the coast of Australia. The oval islands were once part of a colossal coral system that rivaled the Great Barrier Reef.