I’m hanging on for dear life as Janne Honkanen, the owner of Octola Private Wilderness in Finland’s far north Lapland, zooms us into a skidding drift on a frozen lake.

Shuffling across icy ground on a cold December afternoon, lots of tourist groups poured into Santa Claus Village, a ...

The next scientific conundrum to consider is the speed at which Santa Claus needs to make it around ... mph - but how many times would he need to circle the Earth? 100 times?