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NOVA
Why is Researching Cannabis so Hard?
Cannabis is labeled as a Schedule 1 drug—the same category as heroin and LSD—and, despite being legal in many states, is illegal on a federal level.
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53:15
Amazing fossils reveal how mammals took over after an asteroid wiped out the dinosaurs.
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53:23
New archeological evidence shows the stunning engineering of the Great Pyramid of Giza.
53:51
Join scientists as they grab light from across the universe to prove quantum entanglement.
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53:21
Follow engineers and woodworkers as they rebuild an iconic American covered bridge.
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53:34
Follow the harrowing operation to rescue 12 boys stranded in a flooded cave in Thailand.
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53:15
How courage and ingenuity saved Allied troops during the epic Dunkirk operation in 1940.
53:26
Take a mind-blowing voyage to the most powerful and mysterious objects in the universe.