Yesterday, December 21st, was the Winter Solstice, the shortest day of the year in the northern hemisphere, and the start of winter. Also, for the first time since 1638, a total lunar eclipse took place on the same day as the solstice, observable by people across the Americas and parts of Asia. During a lunar eclipse, the Moon travels briefly through the shadow of the Earth, and appears to dim and become a dark reddish color. The coloration is due to sunlight filtering through the Earth's atmosphere - the same conditions that create red sunsets - so an observer standing on the Moon during a lunar eclipse would look up and see the dark Earth surrounded by a red ring, a sunset around the globe. Collected here are images of the eclipse, the solstice, and some of the icy weather as winter officially begins. The Winter Solstice lunar eclipse, seen from Tuktoyaktuk, Northwest Territories on December 21st, 2010 while the Earth's shadow completely covered the moon. This combination of pictures shows the moon during a cycle of a total eclipse as seen from Silver Spring, Maryland, on December 21, 2010. With the city lights of Anchorage, Alaska behind him, Drew Morris tries to photograph the lunar eclipse from the Glen Alps trailhead area of Chugach State Park.