Posted by tourdemars to Technology at May 27, 2003 12:00 PM

A concept vehicle designed to move across the surface of Mars just crossed a hazardous section of frozen Arctic sea on its way to a scientific base station dubbed "Mars on Earth." The MARS-1 Humvee Rover -- an early prototype of a vehicle that could be used if, and when, manned missions make it to the Red Planet -- successfully trundled across 23 miles of frozen ice pack in Canada's high Arctic on May 11.