Watch Wednesday, September 25, 2013 at 9pm | Learn how Viking sword makers designed and built the Ulfberht sword, and uncover its role in history.
Watch previews, scenes and cast interviews from some of your favorite NOVA programs. If you cannot find what you are looking for, please try our video player.
Watch Wednesday, September 18, 2013 at 9pm | Find out if modern cruise ships are really safe — or if we're on the brink of a 21st century Titanic.
Watch Wednesday, September 11, 2013 at 9pm | Return to Ground Zero to witness the final chapter in an epic story of engineering and innovation.
Watch Wednesday, August 28, 2013 at 10pm | Host David Pogue looks into the growing number of smart materials that can respond, change and even learn.
Watch Wednesday, August 28, 2013 at 9pm | Host David Pogue is on a quest to clean up, using new green materials to build and power the devices of the future.