The official onset of winter has begun as the winter solstice this year falls on December 21 thereby making it the shortest day and the longest night of the year in the northern hemisphere.
Internet search engine giant Google celebrated the First Day of Winter, also called the Winter Solstice, with a special doodle on its homepage on Saturday.
Usually, the winter solstice occurs on December 21.
The official onset of winter and the beginning of the end for long, dark nights in the northern hemisphere is marked by the winter solstice.
Skygazers with a clear view in North America and Europe were greeted with a celestial treat.
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