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NOVA

NOVA Wonders What's Living in You?

Season 45 Episode 102 | 53m 40s

Whether they make you fat, fart, or freak out, microbes play a central role in your life. Right beneath your nose—on your face, in your gut, and everywhere in between—trillions of bacteria, viruses, and fungi are so abundant in your body, they outnumber your human cells. But these aren’t just nasty hitch-hikers. Many are crucial to your survival.

Aired: 05/01/18 | Expires: 05/04/24
National Corporate funding for NOVA is provided by Carlisle Companies. Major funding for NOVA is provided by the NOVA Science Trust, the Corporation for Public Broadcasting, and PBS viewers.
Extras
Watch • 0:30
NOVA
Building Stuff: Change It! Preview
From electric flight to artificial noses, engineers are finding new ways to preserve our planet.
Preview: S51 E17 | 0:30
Watch • 5:08
NOVA
Creating a Robotic Double Dutch Machine
Blending innovation and culture, engineers bring a robotic Double Dutch machine to life.
Clip: S51 E15 | 5:08
Watch • 0:30
NOVA
Building Stuff: Reach It! Preview
Humans are born to roam. See how engineers are inventing new ways to explore and extend our range.
Preview: S51 E16 | 0:30
Watch • 2:16
NOVA
Could Mars Have a Ring Around It One Day?
The moon Phobos has a mysterious origin but a certain expiration date.
Clip: S51 E13 | 2:16
Watch • 1:39
NOVA
Cameras Capture Earthbound Meteorite
Some large meteorites survive their descent through our atmosphere and land on Earth.
Clip: S51 E13 | 1:39
Watch • 2:14
NOVA
This Moon May Have the Ingredients for Life
The ocean beneath Europa’s icy shell might be an ideal environment for life.
Clip: S51 E12 | 2:14
Watch • 1:21
NOVA
Could This Icy Moon’s Ocean Support Life?
Hydrothermal vents in Enceladus’ ocean may hold the promise of life.
Clip: S51 E11 | 1:21
Watch • 1:56
NOVA
Enceladus: A Frozen Moon With Explosive Eruptions
Enceladus’ small size and icy surface is no limitation to its extreme volcanism.
Clip: S51 E11 | 1:56
Watch • 2:59
NOVA
How the Martian Atmosphere Helped Nasa’s Rovers Restore Energy
Martian dust devils may have helped NASA’s rovers restore power during mission.
Clip: S51 E9 | 2:59
Watch • 0:55
NOVA
Why Do Comets Have Tails?
As comets cross the invisible boundary known as the ice line, their ice starts turning into gas.
Clip: S51 E12 | 0:55
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NOVA
Building Stuff: Change It!
From electric flight to artificial noses, engineers are finding new ways to preserve our planet.
Episode: S51 E17
Watch • 53:40
NOVA
Building Stuff: Reach It!
Humans are born to roam. See how engineers are inventing new ways to explore and extend our range.
Episode: S51 E16 | 53:40
Watch • 53:40
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Building Stuff: Boost It!
Is engineering humanity’s superpower? See how we can amplify our natural abilities in amazing ways.
Episode: S51 E15 | 53:40
Watch • 53:40
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Decoding the Universe: Quantum
Dive into the universe at the tiniest – and weirdest – of scales.
Episode: S51 E14 | 53:40
Watch • 53:34
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Solar System: Wandering Worlds
Meet the surprising, oddball worlds moving around our solar system.
Episode: S51 E13 | 53:34
Watch • 53:34
NOVA
Solar System: Icy Worlds
Visit strange, frozen worlds to discover the bizarre ice that forms beyond Earth.
Episode: S51 E12 | 53:34
Watch • 53:34
NOVA
Solar System: Volcano Worlds
Discover the powerful volcanic eruptions that have shaped worlds across our solar system.
Episode: S51 E11 | 53:34
Watch • 53:34
NOVA
Solar System: Strange Worlds
What are the weirdest worlds in our solar system, and how did they come to be?
Episode: S51 E10 | 53:34
Watch • 53:34
NOVA
Solar System: Storm Worlds
Discover the dramatic forces creating spectacular weather on neighboring planets and moons.
Episode: S51 E9 | 53:34
Watch • 53:38
NOVA
Decoding the Universe: Cosmos
Explore big discoveries that have revolutionized our understanding of the universe.
Episode: S51 E8 | 53:38