Hunt for the Supertwister
"Hunt for the Supertwister."
Secrets of the Sun
Examining the sun, which is 27 million degrees Fahrenheit.
Scientists examine evidence about Neanderthals that sheds light on the hominids, who died off some 30,000 years ago. See the 2010 reconstruction of the Neanderthal genome, which posits that modern humans and Neanderthals interbred.
Venom: Nature's Killer
Hunting down the most venomous animals to reveal their medical mysteries.
Australia's First 4 Billion Years: Strange Creatures
Australia's First 4 Billion Years: Monsters Preview
Some 250 million years ago, some of the largest, most dangerous reptiles ruled this land.
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On the anniversary of 9/11, Nova presents an epic story of engineering, innovation, and the perseverance of the human spirit. With extraordinary access granted by The Port Authority of New York and New Jersey, Engineering Ground Zero follows the five-year construction of One World Trade Center and the National September 11 Memorial & Museum.
Nova captures the behind-the-scenes struggle of architects and engineers to make the buildings safe and highly secure under the pressures of a tight schedule, the demands of practical office space and efficient "green" architecture, and the public's expectations of a fitting site for national remembrance.
Featuring interviews with 1 WTC architect David Childs; Chris Ward, executive director of the Port Authority of New York and New Jersey; Mayor Michael Bloomberg, chairman of the 9/11 Memorial Foundation; and Michael Arad, the man behind the breakthrough concept for the 9/11 Memorial.
More from Nova on PBS.org
From The World's Science podcast to Nova, we'll deliver updates from these cutting edge programs. See a sample »