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Inside the Megastorm
Explore what made Megastorm Sandy so much more devastating than other hurricanes.
S39 Ep16 | 53m 37s
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Mystery of Easter Island
A team tests a theory on how the ancient stone statues were moved, using a 15-ton replica.
S39 Ep14 | 53m 10s
Secrets of the Viking Sword
A modern-day swordsmith reverse engineers the ultimate weapon of the Middle Ages.
S39 Ep13 | 52m 53s
Why Ships Sink
Are you safe aboard a modern cruise ship?
S39 Ep11 | 52m 53s
Why was the 2011 tornado season in the U.S. so extreme, and why did so many die?
S39 Ep10 | 52m 52s
Follow the story of twin girls joined at the head, as surgeons prepare to separate them.
S39 Ep8 | 53m 2s
Secrets of the Sun
New tools let scientists better grasp our star's potentially destructive solar storms.
S39 Ep7 | 53m 7s
Hunting the Elements
A two-hour special from the producers of "Making Stuff"
S39 Ep6 | 1h 53m 25s
Ice Age Death Trap
Experts uncover a site in Colorado packed with fossil mammoths and other extinct beasts.
S39 Ep5 | 53m 3s
Mystery of a Masterpiece
Experts investigate whether a portrait sold for about $20,000 in 1998 is a lost Leonardo.
S39 Ep4 | 52m 52s
3D Spies of WWII
The allies used special arial photos to deal a blow to the Nazi rocket program.
S39 Ep3 | 53m 7s
Bombing Hitler's Dams
Can experts recreate an Allied attack from WWII and destroy dams with a bouncing bomb?
S39 Ep2 | 1h 52m 51s
How can we best prepare for the most lethal volcanic eruptions?
S39 Ep1 | 52m 45s