The summer solstice in the Northern Hemisphere is simultaneously the winter solstice in the Southern Hemisphere. Around Dec. 21, the solstices are reversed and winter begins in the Northern Hemisphere.
What do you need to know as the calendar turns to Summer?
Tap here to learn about the Summer Solstice and related facts about the sun.
Dallas Cowboys quarterback Tony Romo missed his third straight day of practice with a back injury on Friday and could be a game-time decision.
NBC is developing a reality TV series called "Space Race" with Virgin Galactic, whose SpaceShipTwo exploded on Friday.
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