What is a solstice? Twice a year, one hemisphere has its longest day of the year while the other has the longest night. These solstices are the astronomical beginning of winter and summer. Source: space.com Tags: one, Space, the longest night, year Like 0 Thanks! You've already liked this 41 views « ‘Star Trek: Fleet Command’ mobile strategy game is beaming up the entire Trek timeline » Akon Joins Brock Pierce’s Presidential Campaign as Chief Strategist Leave a Reply Cancel replyYou must be logged in to post a comment.