July 10, 2008— A recently formed tunnel in Argentina's Perito Moreno glacier collapsed on Wednesday. This is the first time in decades such an event has occurred during the Southern Hemisphere's winter.
Welcome to the National Geographic video player.
You need the latest Flash Player version from Abode and a JavaScript enabled browser to view this site. Please click here to download the free flash player.
© 1996-2009 National Geographic Society. All rights reserved.