A Perfect Trio of Prehistoric Atolls Glow Like Tropical Jewels Off Australia's Coast – Earth From Space

Rowley Shoals is an Australian territory that includes three atolls: Imperieuse Reef (lower left), Clerk Reef (centre) and Mermaid Reef (upper right). (Image courtesy of NASA/ISS) This stunning photograph by an astronaut shows an unusual chain of three atolls located…