A black moon follows the same rules as a blue moon, except instead of being full, the moon is in its first phase called “new” for a black moon. The black moon happening this Wednesday is the third new moon during the winter season and it is taking place on the same day that the moon is closest to Earth. Hence the term ‘black supermoon’. So, if you were hoping for a supermoon like the one in June 2013 in the image below, you’re out of luck this time around. But you don’t have long to wait for the next full supermoon to take place.