“Great Barrier Reef Near Whitsunday Islands” was uploaded to Flickr

An astronaut aboard the International Space Station used a powerful lens to photograph these three reefs in Australia’s Great Barrier Reef on Oct. 12, 2015. Reefs are easy to spot from space because the iridescent blues of shallow lagoons contrast sharply with the dark blues of deep water. via NASA ift.tt/1P1a2Iu
embiggen by clicking http://flic.kr/p/HhTW6E
Great Barrier Reef Near Whitsunday Islands was taken on October 11, 2015 at 10:24PM