This week marks a coincidence of the full moon and the summer solstice in the northern hemisphere, winter solstice in the south. The full moon meets the summer solsticeMIKE HUTCHINGS Clouds pass over as the moon is partially covered by the Earth's shadow during a total lunar eclipse in Cape Town, September 28, 2015. The summer solstice can also be defined as a point in the Iarth's 365.2425-day orbit when the sun reaches its maximum height above the horizon at the North Pole. David Hand, a professor at Imperial College London makes sense of world's abundance of rare events in his 2014 book, The Improbability Principle: Why Coincidences, Miracles and Rare Events Happen Every Day. The same principle can influence the odds of a full moon solstice.

Source: Stuff June 20, 2016 19:52 UTC