Take a look at posters, buttons, stamps, and other environmental objects from our collections ... Smithsonian Design Museum Earth Day '91 New York City National Museum of American History Earth Day Is ...

At night, this bounty triggers the largest daily migration on earth. A cloud of zooplankton (tiny microscopic creatures) emerges from the ocean depths to feast — doubling their weight every day.

For the first time in seven years, the average length of day became ... this rotation. As Earth’s rate of rotation changes, “leap seconds” are added or taken away every so often.

The annual University of North Georgia (UNG) Earth Day event, a UNG Signature Event on the Gainesville ... At the University of North Georgia, we deeply value and uphold the cherished right of every ...