Why Worry About ICBMs?
Season 44
About the Episode
What are intercontinental ballistic missiles (ICBMs), and why are they hard to shoot down?
Aired:
| Expires: | Runtime: 2m 59s
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Extras
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What's Inside These Ancient Egyptian Jars?
A nearly 3,000-year-old canopic jar is discovered in an Egyptian tomb.1:58 -
Secrets of the Forest Preview
Follow scientists in a quest to understand how complex forest ecosystems can help cool our planet.0:30 -
The Rocket-Less Future of Space Travel
Space elevators? Nuclear rockets? The future of space travel could look radically different.5:17 -
Do Aliens Exist? This Famous Equation Offers a Clue
The Drake Equation helps scientists estimate the odds of finding intelligent alien civilizations.5:04 -
4 Ways the Universe Could End
If the universe as we know it started with the Big Bang, will it also have an end?5:07 -
Building Blocks of Life Discovered on Distant Asteroid
Scientists have discovered the building blocks of life in samples retrieved from a distant asteroid.6:03 -
Revolutionary War Weapons Preview
Explore key military technologies in the American colonies’ fight for freedom.0:30 -
What Went Wrong on the Dali Before the Baltimore Bridge Collapse
The container ship Dali lost power causing it to crash into Baltimore’s Key Bridge.2:57 -
What Caused Baltimore’s Key Bridge to Collapse?
Engineers explain how a vulnerability made the bridge open to catastrophe.2:57 -
This Pompeii Priest Had an Unexpected Rise to Power
In a recently discovered tomb in Pompeii, archeologists made a startling discovery.2:58
