When you think of Christmas, most think of Santa Claus. Although the legendary character Santa is part of Christmas, it hasn’t always been like that. In fact, Santa Claus is the product of the merging ...

Ideas from physics suggest Santa could use wormholes, nanobots or even the multiverse to deliver billions of presents in one night.

Santa cannot sit with kids in shopping malls this year, but they can still tell him their Christmas wishlist in a video chat at home.