PARIS, Jan. 11 (UPI) -- There's no priority mail in Antarctica. Supplies must be delivered the old fashioned way, by caravan. Instead of horses and wagons, however, the supplies are loaded atop skis and pulled by a tractor across the snow and ice.
This week, France's Pleiades satellite photographed an Antarctic caravan from its vantage 430 miles above Earth's surface. The 1,000-foot-long convoy can be seen as a dark sliver, stretching across the white landscape.