The passage is "the most dreaded bit of ocean on the globe," Alfred Lansing wrote in his 1959 book "Endurance: Shackleton's Incredible Voyage to the Antarctic."At around 600 miles (965 kilometers ...

Mikkelsen, the first Norwegian bound for space, has flown over the poles before, but at a much lower altitude. She was part of the 2019 record-breaking mission that circumnavigated the world via the ...