Martian Rilles (IMAGE) Geological Society of America Caption The photo is an annotated picture of one of the longest Martian rilles. It is a THEMIS daytime infrared image mosaic and north is at the top. The image is centered at approximately 116.3°E and 25.0°S. Credit Courtesy of ASU / NASA / JPL. Usage Restrictions Appropriate caption and credit required License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.