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NOVA
Hunt for the Oldest DNA
Season 51
Episode 4
For decades, scientists have tried to unlock the secrets of ancient DNA. Follow the dramatic quest to recover DNA millions of years old and reveal a lost world from before the last Ice Age.
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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"

53:10
Is our universe unique, or could it be just one in an endless "multiverse"?

53:40
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.

53:40
Surprising clues indicate that space is very much something and not nothing.

1:43:15
We are on the verge of answering one of the greatest questions in history: Are we alone?