Airbus Perlan Mission II, an initiative to fly a glider without an engine to the edge of space to collect ground-breaking insights on climate change, weather and high-altitude flight, this week reached a new high altitude in its second season of flight testing in El Calafate, Argentina. Pilots Jim Payne, Morgan Sandercock, Tim Gardner and Miguel Iturmendi have soared the pressurized Perlan 2 glide...