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NOVA
Origins: Where are the Aliens?
Season 31
Episode 13
Journey back to the beginning of everything: the universe, Earth, and life itself.
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53:37
An astonishing find could solve the mystery of Sir John Franklin’s lost expedition.

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53:09
A team attempts to build the flood boat using inscriptions from an ancient clay tablet.

53:10
Examine the science behind vaccinations and the risks of opting out.

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52:52
Can scientists unravel the mysterious phenomena that lurk between Earth and space?

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53:10
Which technologies worked in the race to track down the men behind the marathon attack?

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52:53
Can science help us understand why some people commit horrific acts of mass murder?

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52:52
A team uncovers the advanced engineering behind an ancient Egyptian war machine.

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53:10
Shared DNA reveals a deep connection with our long-vanished human cousins.

1:53:49
A two-hour special from the producers of "Making Stuff"

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Is our universe unique, or could it be just one in an endless "multiverse"?

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Take a wild ride into the quantum realm, where even the impossible seems possible.

53:40
It defines our lives, but what is time really? Have a look into its true nature.