Russian polar team on its way home
The ten day expedition explored the sea bed of the Arctic and planted a Russian flag there.
The mission was to collect geological evidence proving that a vast underwater area of the Lomonosov ridge, rich in oil and gas, is a continuation of Russia's continental shelf.
The trip sparked criticism from Canada and the U.S. The Americans are now sending their own icebreaker to the North Pole for what it calls a preplanned research mission.