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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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Explore the engineering behind Paris’s iconic landmark, the tallest structure of its time.
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Giant fossils uncovered in the Sahara Desert reveal new secrets of how whales evolved.
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A family turns to science in their struggle to rediscover a history obscured by slavery.
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The inside story of China’s meteoric rise to the forefront of global innovation.
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How did Earth give rise to humans? See what made our species' existence possible.
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53:45
How did life bounce back after a cataclysmic extinction wiped out some 90% of all species?
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53:47
See how life made the leap to land, turning a barren landscape into a lush, green world.
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See how Earth transformed from a barren hellscape to a planet capable of sustaining life.
