Venus Colorized image of the surface of Venus, computer reconstruction of the radar maps obtained with the Magellan satellite. NASA/JPL. Image as seen by the Pioneer Venus Orbiter,Feb. 26, 1979,http://nssdc.gsfc.nasa.gov/planetary/pioneer_venus.html Earth Image from www.phototripusa.com/Images/lmalvin/saguaro3.htm Image taken by the crew of Apollo 17, from www.hq.nasa.gov/office/pao/History/factsheet.htm Mars Image of the Martian surface, showing NASA's Sojourner rover.from science.nasa.gov/headlines/y2000/ast17nov_1.htm Image from nssdc.gsfc.nasa.gov/planetary/factsheet/marsfact.html