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What Will Extraterrestrial Life Look Like?
Tutored in several European languages for hours on end and strapped to a steel rod for posture, Consuelo Vanderbilt's childhood was anything but easy.
Just outside North Carolina's Outer Banks is Roanoke Island, the scene of one of the greatest unsolved mysteries in U.S. history: the disappearance of an entire colony of English settlers.
The Colonial Settlement That Vanished Into Thin Air (2:10)
Whale milk is some of the richest milk available to any mammal. A baby whale will drink 150 gallons of it a day to sustain its dramatic growth.
Baby Humpbacks Need 150 Gallons of Whale Milk a Day (2:51)
Why saying cheese just didn’t happen in the early days of photography.
Ask Smithsonian: Why Don’t People Smile in Old Photographs? (1:12)
In 1828, John Jacob Astor built a trading post on the Missouri River. Business was so profitable that it only took four decades for Astor to become America's first multimillionaire.