Sorry Dave, for posting so much in your thread. They don't like video proof and evidence. I will still post there with whatever data and information I can find but I'll try not to post any videos. Still. nobody can answer the question of a true proven circumnavigation from the top of the ball to the bottom of the ball and coming back up the other side. No jet, rocket, plane, ship, boat or even a nuclear powered submarine. They call it the Arctic "Circle" for a reason. Good luck !!!