Fireworks explode over Mount Rushmore National Memorial in South Dakota's Black Hills. (Courtesy of Travel South Dakota) In the earliest days of the United States, John Adams wrote to his wife Abigail ...
On a clear, sunny day, the sky above us often glows a brilliant blue, a sight so commonplace that many of us rarely stop to question why. While this natural phenomenon might seem simple to explain, ...
AZ Animals on MSN
The Science Behind the Vulturine Guinea Fowl’s Striking Feathers
Explore how the vulturine guinea fowl’s striking blue and white feathers serve more than beauty. From structural coloration ...
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