Winter Solstice 2018: What is the winter solstice, when is it THIS WEEK? THE Winter Solstice happens in the Northern Hemisphere every year in December - but what is it and when is it happening this week? Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:Rosalind Franklin: NASA Mars rover named after pioneer - Who was Rosalind Franklin?Democrats Formally Call for a Green New Deal, Giving Substance to a Rallying CryNASA and SpaceX launch date DELAYED: SpaceX’s Dragon flight test pushed back to MarchU.K. Doctors Call for Caution in Children’s Use of Screens and Social MediaYellowstone volcano: ERUPTION can trigger chain of aftershocks over ‘THOUSANDS of years'SECRET OF CONSCIOUSNESS: Scientists reveal where THE MIND lives inside your brain