Jun 30, 2012 06:14 AM EDT
World’s Oldest and Biggest Crater is in Greenland
The world's oldest and biggest crater in the world is 100 km wide and has been traced in Greenland. Ateam of scientists from the Geological Survey of Denmark and Greenland (GEUS) in Copenhagen, Cardiff University in Wales, Lund University in Sweden and the Institute of Planetary Science in Moscow di...