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NOVA
The Rocket-Less Future of Space Travel
Imagine taking an elevator to space. Or blasting off in a nuclear rocket. That might sound like science fiction, but scientists are racing to develop new, more efficient methods of space travel - and some pretty wild ideas are on the table. Discover the rocket-less future of space travel and the quest to make it happen.
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53:31
Who created the Nazca lines and why? New clues to one of the greatest ancient enigmas.

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53:32
Meet one of the ocean’s most beautiful and destructive species: Lionfish.

53:47
Psychedelics are unlocking new ways to treat conditions like addiction and depression.

53:30
Is artificial intelligence making policing and courts fairer, or is it increasing bias?

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53:43
A team tackles the restoration of iconic Notre Dame Cathedral.

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53:31
Can innovative engineering projects save Venice?

53:33
Can innovative drugs and therapies finally end HIV?

53:33
Discover how NASA engineers built and launched the most ambitious telescope of all time.

53:43
Ancient footprints provide new evidence of humans and extinct giant beasts of the Ice Age.

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53:20
How could a single ship cause a major supply chain crisis around the globe?

53:16
Sir David Attenborough explores a site with traces of ancient mammoths and Neanderthals.

53:30
In the Arctic, enormous releases of methane, a potent greenhouse gas, threaten the climate