In the northern hemisphere, today is the Winter Solstice, the shortest day of the year.
The Solstice normally falls on either the 21st or the 22nd, the date changing based on the exact position of the north pole in relation to the sun. This is the same reason why we have leap years – our calendar year doesn’t match up with the solar year, and so we have to add a day on every four years in order to recalibrate our calendars with our position in space. This year, 2015, the point at which the north pole is furthest from the sun falls on the 22nd December. Continue reading “Solstice”