NASA @NASA
No matter where on Earth you are, it's time for the December solstice! 10:59am EST (15:59 UTC) marks the start of astronomical winter in the Northern Hemisphere—and the beginning of astronomical summer in the Southern Hemisphere. Here's what that means: https://t.co/ZAJQ8YFtVZ https://t.co/JCUB7OmFg9 — PolitiTweet.org