The Barchan Dunes of BrazilFormer NASA astronaut Jack Fischer captured this photograph of Lagoa dos Barros and crescent-shaped barchan dunes on the Atlantic coastline of southern Brazil on July 9, 2017, while aboard the International Space Station.Read More Facebook Pinterest X LinkedIn Email https://www.nasa.gov/image-detail/iss052-e-14188-lrg/Copy URL to clipboard> DownloadShareSize1041x693px