Mystery of a Masterpiece
Art experts investigate whether a portrait sold for about $20,000 in 1998 is actually a lost Leonardo worth millions.
Art experts investigate whether a portrait sold for about $20,000 in 1998 is actually a lost Leonardo worth millions.
Experts recreate the bold feat of "dambuster" pilots who used bouncing bombs to destroy two key German dams in WWII.
Detailed satellite images reveal the web of connections that sustain life on Earth.
Mass graves and forensic evidence reveal a complex truth about how the Inca Empire fell.
Jeopardy! challenges even the best human minds. Can a computer win the game?
With new tools, scientists are striving to better grasp our star and its potentially widely destructive solar storms.
A two-hour special from the producers of "Making Stuff"
An eyewitness account and investigation of the epic earthquake, tsunami, and nuclear crisis
With 3D graphics, NOVA reveals how the Allies used special aerial photos to deal a dire blow to the Nazi rocket program.
The Fabric of the Cosmos, Hour 3: Take a wild ride into the quantum realm, where even the impossible seems possible.
The Fabric of the Cosmos, Hour 2: It defines our lives, but what is time really? Have a look into its true nature.
Scientists are on the verge of answering one of the greatest questions in history: Are we alone?
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