The U.S. Air Force's second Space-Based Infrared System destined for Geosynchronous Earth Orbit (SBIRS GEO-2) roars away from Space Launch Complex (SLC)-41 at Cape Canaveral Air Force Station, Fla., at 5:21 p.m. EST, 19 March 2013. Photo Credit: Julian Leek / Blue Sawtooth Studios
This shot of Curiosity's wheels makes us feel like we're right there Context is everything. Hi-res images of Mars's mountains and landscapes are all very impressive, but this shot of Curiosity's wheels really drives home the fact that we've got a robot romping around on an alien planet. Mars has never seemed so close. This image also reminds us how big Curiosity really is. Each of its six wheels measures a half-meter across, about 1.6 feet.