This approximately true-color image shows part of the Turks and Caicos Islands archipelago, observed September 18, 2001.
Published Apr 17, 2009
The Whitsunday Islands are a collection of some 74 islands sandwiched between the Australian mainland and the outer atolls of the Great Barrier Reef.
Published Jan 2, 2010
Lakshadweep’s coral atolls glow iridescent blue-green in this natural-color scene from February 2012.
Published Apr 15, 2012
The Dry Tortugas are a group of islands located approximately 75 miles west of Key West, Florida; they form the western end of the Florida Keys in the Gulf of Mexico. This astronaut photograph highlights three islands in the group: Bush Key, Hospital Key, and Garden Key, which is the site of Fort Jefferson, a Civil War-era fort.
Published Aug 18, 2008
In one frame International Space Station astronauts were able to capture the evolution of fringing reefs to atolls. As with the Hawaiian Islands, these volcanic hot spot islands become progressively older to the northwest. As these islands move away from their magma sources they erode and subside.
Published Feb 16, 2003
Penguins, seals, and scientists are among the residents of a remote archipelago in the southern Indian Ocean.
Published Dec 28, 2016
This astronaut photo from January 6, 2009, shows giant kelp beds in the waters surrounding Mac Murdo and Howe Islands—2 of the 300 islands that make up the Kerguélen Archipelago in the southern Indian Ocean.
Published Mar 2, 2009
