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Colosseum: Roman Death Trap Preview
Season 42 Episode 6
NOVA
About the Episode
1500 years ago, how did the Romans engineer bloody spectacles and reenact sea battles?
Aired: | Expires: | Runtime: 30s
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Meet the surprising, oddball worlds moving around our solar system.
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Visit strange, frozen worlds to discover the bizarre ice that forms beyond Earth.
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Extras
Building Stuff: Reach It! Preview
Humans are born to roam. See how engineers are inventing new ways to explore and extend our range.
0:30
Could Mars Have a Ring Around It One Day?
The moon Phobos has a mysterious origin but a certain expiration date.
2:16
Cameras Capture Earthbound Meteorite
Some large meteorites survive their descent through our atmosphere and land on Earth.
1:39
This Moon May Have the Ingredients for Life
The ocean beneath Europa’s icy shell might be an ideal environment for life.
2:14
Could This Icy Moon’s Ocean Support Life?
Hydrothermal vents in Enceladus’ ocean may hold the promise of life.
1:21
Enceladus: A Frozen Moon With Explosive Eruptions
Enceladus’ small size and icy surface is no limitation to its extreme volcanism.
1:56
How the Martian Atmosphere Helped Nasa’s Rovers Restore Energy
Martian dust devils may have helped NASA’s rovers restore power during mission.
2:59
Why Do Comets Have Tails?
As comets cross the invisible boundary known as the ice line, their ice starts turning into gas.
0:55
This Tiny Moon Is a Volcanic Powerhouse
Io’s intense volcanic activity defies all expectations.
2:45
How a Walnut-Shaped Moon Help Shape Saturn’s Rings
For millions of years, a tiny moon has made a significant impact on the structure of Saturn’s rings.
2:35
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