“Reading the Alphabet From Space” was uploaded to Flickr

NASA's Earth Observatory has tracked down images resembling all 26 letters of the English alphabet using only NASA satellite imagery and astronaut photography. In this image, the letter 'Y' is for yardangs, elongated landforms sculpted by erosion and similar to sand dunes, but instead comprised of sandstone or siltstone. via NASA ift.tt/1ZzD7Bo
embiggen by clicking http://flic.kr/p/BFuUXY
Reading the Alphabet From Space was taken on October 08, 2015 at 07:26AM