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Scientists have a new tool to edit genes in human cells to repair mutations. What is it?
What is CRISPR gene editing?
To make their delivery schedule, how quickly must Santa and his reindeer travel the world?
How Fast Does Santa Fly?
Could a safety technology have prevented a train crash in Washington that killed three?
How to Prevent Train Crashes
How Much Does a Thought Weigh?
Even in your mind, energy goes with it—bottle up that energy and it has mass.
How Much Does a Thought Weigh?
Climate Action Without the Feds?
Can states, cities, and companies fulfill US obligations to the Paris Accord on their own?
Climate Action Without the Feds?
What's Inside the Great Pyramid?
Cosmic particles reveal a previously hidden void in the Great Pyramid of Khufu in Egypt.
What's Inside the Great Pyramid?
What makes a brain or machine conscious? This theory is beginning to provide some answers.
Will Robots Become Conscious?
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Episodes
Experts drill into the impact crater of an asteroid that created a worldwide cataclysm.
Day the Dinosaurs Died
Experts reconstruct the Great Hurricane of 1780 to help predict the risk of future storms.
Killer Hurricanes
Scientists hunt for a mega-eruption that plunged medieval Earth into a deep freeze.
Killer Volcanoes
At ground zero for the final solution, scientists uncover a story of hope and bravery.
Holocaust Escape Tunnel
Engineers are using origami to design drugs, micro-robots, and future space missions.
The Origami Revolution
Explore the hidden world of energy storage and how it holds the keys to a greener future.
Search for the Super Battery
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