On January 31, millions of stargazers around the globe will witness what promises to be a spectacular total lunar eclipse. While the celestial event is always special, what makes Wednesday’s particularly noteworthy is that it coincides with both a blue moon and a supermoon. Hence the moniker “super blue blood moon.” According to NASA, the lunar trifecta is the first of its kind in 35 years and will not occur again until 2037.