National Geographic - A high-resolution map from NASA's Shuttle Radar Topography Mission (SRTM), released yesterday, has provided the most telling visible evidence to date of a 112-mile (180-kilometer) wide, 3000-foot (900-meter) deep impact crater. Image Shows Crater That Killed Dinos Salt Lake Tribune Radar reveals traces of killer crater MSNBC 5:00:19 PM Google It!comment
