I’m continuing my cold-weather adventure in the Canadian sub-arctic on the shores of Hudson Bay ... word came in that the northern lights (aurora borealis) were blazing. This part of Canada ...

Just on the edge of the western Hudson Bay lies the small town of Churchill, Manitoba. Here, the sea meets the boreal forest under the rippling northern lights. Farther to the north, the trees stop ...

High-speed winds from a spot on the sun’s surface may affect Earth’s magnetic field, pulling the phenomenon further south.