(20 Jun 2018) LEADIN
Thursday marks the first official day of summer in the northern hemisphere.
The 21st of June is when the summer solstice occurs, bringing the longest day of the year if you live north of the equator.
STORYLINE:
Summer is here
Summer solstice in the Northern Hemisphere is Thursday, June 21st.
It will be the longest day of the year. The farther north, the longer the day.
The summer solstice occurs when the sun is directly above the Tropic of Cancer.
Many assume that this means Earth is closest to the sun.
It's actually because of the Earth's 23.4 degree tilt on its axis.
On June 21st, Earth's northern half will be pointed toward the sun and its southern half away from it, causing the north to have its longest day, and the south its shortest.
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