image: Recurring slope lineae (RSL) on the central structure of Horowitz Crater (32°S, 140.8°E), MRO Primary Science Phase (PSP) image PSP_005787_1475 (LS = 334: late summer). Altimetry map (A) locates the full 5.1-km-wide HiRISE image (B), with the white box indicating the color enlargement (C). Blue arrows in (B) show some concentrations of RSL within the central peaks and pits. Colors in (C) have been strongly enhanced to show the subtle differences, including light orange streaks (black arrows) in the upper right that may mark faded RSL. North is up on all images in this paper except fig. S4. This image relates to an article that appeared in the Aug. 5, 2011, issue of Science, published by AAAS. The study, by Dr. Alfred S. McEwen of the University of Arizona in Tuscon, Ariz., and colleagues was titled, "Seasonal Flows on Warm Martian Slopes." view more
Credit: Image courtesy of Science/AAAS