Mysterious signs of worshiping of the winter solstice crop up around the world.
Saturday (Dec. 21) marks one of the four major way stations on the Earth’s annual journey around the sun.
One geologist thinks Earth has been banged up a bit more than previously thought -- never allowing the 'Snowball Earth' global ice age to develop.
Fall foliage might look a bit different from way up where NASA satellites live, but that doesn't mean the view isn't great anyway.
The end of summer and the start of autumn has arrived in the northern hemisphere.
Blooming cherry trees usher in spring to Washington, D.C. Take a look at the long history of our Capitol's trees.
Across the Northern Hemisphere spring has arrived, and with it many ways to celebrate.
The warmest springs on record have caused flowers in two historic sites to bloom at their earliest dates in decades.