Everything you need to know about the June 21 solstice
The 2018 summer solstice will be on June 21 this year, and is set to signal the start of both summer and winter, depending on area.
WASHINGTON D.C. — The 2018 summer solstice will soon be upon us, marking the beginning of different seasons depending on where you live.
The earth rotates on a tilted axis while orbiting the sun, which means different parts of the planet are pointed at or away from the sun depending on the time of year.
During the solstice on June 21, the North Pole is tilted toward the sun, allowing it to shine at a 90-degree angle on the Tropic of Cancer, which sits at 23.5 degrees north of the equator.
Anyone standing right on the Tropic of Cancer at noon on solstice day will see the sun directly overhead, and find themselves casting a very minimal shadow.
Since the northern hemisphere faces the sun, it will experience the longest day and the start of summer. For the southern hemisphere, which tilts away from the sun, it is the shortest day and the start of winter.
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