Table of Contents

24 January 2014
Vol 343, Issue 6169

About The Cover

Cover image expansion

COVER Eroded landscape of Yellowknife Bay, Gale crater on Mars. Sheepbed mudstone is seen in the foreground, ~4 meters distant from the Curiosity rover camera that took the photo; Gillespie sandstone is in the middle field. The foothills of Mt. Sharp (upper left), ~20 kilometers distant, are Curiosity's ultimate destination. Exploration of this region by the Curiosity rover offers evidence of an ancient, potentially habitable environment. See the special section beginning on page 386 and at www.sciencemag.org/extra/curiosity. Image: NASA/JPL-Caltech/Malin Space Science Systems