There are weird things going on out there even in boring ole Canada. It’s amazing that there are parts of the earth that have less gravity than other spots. It’s mind boggling that even after forty years, no one still knows why. Maybe that is where all the aliens and space travelers are hiding.
For more than 40 years, scientists have tried to figure out what’s causing large parts of Canada, particularly the Hudson Bay region, to be “missing” gravity. In other words, gravity in the Hudson Bay area and surrounding regions is lower than it is in other parts of the world, a phenomenon first identified in the 1960s when the Earth’s global gravity fields were being charted.
Two theories have been proposed to account for this anomaly. But before we go over them, it’s important to first consider what creates gravity. At a basic level, gravity is proportional to mass.
via (Touch Me!)