A few days ago we passed the Autumnal Equinox, and said goodbye to Summer in the northern hemisphere, as the southern hemisphere welcomed Spring.  This is all due to the tilt of the Earth’s axis at 23.5 degrees.  As it orbits the Earth, the tilt alternately points the hemispheres toward direct sunlight, bringing summer during that time and winter 6 months later. But what about the North and South pole? What happens there? In summertime, because the North pole is actually tilted toward the Sun, the region receives direct sunlight for 6 months! The Sun just never sets!  Check out...