6HWbNHN-show-poster2x3-c7tgE2Y.png

Artbound

Start watching
MJ250sC-show-poster2x3-Bflky7i.png

Tending Nature

Start watching
Southland Sessions

Southland Sessions

Start watching
HvlSxHY-show-poster2x3-4ik43uV.png

Earth Focus

Start watching
5LQmQJY-show-poster2x3-MRWBpAK.jpg

Reporter Roundup

Start watching
City Rising

City Rising

Start watching
Lost LA

Lost LA

Start watching
Member
Your donation supports our high-quality, inspiring and commercial-free programming.
Support Icon
Learn about the many ways to support KCET.
Support Icon
Contact our Leadership, Advancement, Membership and Special Events teams.
Hagia Sophia: Istanbul's Ancient Mystery
Access to this video is a benefit to members with PBS Passport.
Nova

Hagia Sophia: Istanbul's Ancient Mystery

Follow engineers as they build a massive 8-ton model of the building's core structure, place it on a motorized shake table, and hit it with a series of simulated quakes, pushing it collapse—a fate that the team is determined to avoid with the real building.

Read more
Support Provided By
Full Episodes
Season
kgeFPTw-asset-mezzanine-16x9-Mutfdfd.jpg
Episode
20:37
Nova

Search Engine Breakdown

Two leading researchers investigate racial bias built into widely used search engines.
pwwv8m6-asset-mezzanine-16x9-sC5yzNV.jpg
Episode
1:52:37
Nova

Picture a Scientist

Researchers expose longstanding discrimination against women in science.
Vfrwdjt-asset-mezzanine-16x9-AUrgyH5.jpg
Episode
53:46
Nova

Looking for Life on Mars

NASA launches its most ambitious search yet for traces of ancient life on Mars.
r0J8dXY-asset-mezzanine-16x9-WvoUKVY.jpg
Episode
53:26
Nova

Secrets in our DNA

More than 12 million Americans have sent their DNA to be analyzed by companies like 23andMe and AncestryDNA, but what actually happens once the sample is in the hands of testing companies? What are they looking at and how accurate are they?
The sun from outer space shines down on Earth. | From "NOVA: Can We Cool the Planet?"
Episode
53:31
Nova

S47 E16: Can We Cool The Planet?

As global temperatures rise, scientists are exploring geoengineering solutions, from planting trees to sucking carbon out of the air to physically blocking out sunlight. But would it work? And what are the risks of engineering Earth's climate?
A spacecraft floating in space over an asteroid. | From "NOVA: Touching the Asteroid"
Episode
54:03
Nova

S47 E15: Touching The Asteroid

If spacecraft OSIRIS-REx can grab a piece of an asteroid and bring it back to Earth, scientists could gain great insight into our planet's origins, and even how to defend against rogue asteroids. But NASA only gets three shots at collecting a sample.
An early printing press. | From "NOVA: A to Z - How Writing Changed The World"
Episode
53:31
Nova

S47 E14: A to Z – How Writing Changed The World

Just as handwritten records changed how societies work, the printing press transformed the spread of information, igniting the Industrial Revolution. How did technologies — from pen to paper to printing press — make it all possible?
A person doing calligraphy on a piece of paper. | From "NOVA: A to Z - The First Alphabet"
Episode
54:01
Nova

S47 E13: A to Z – The First Alphabet

Writing shaped civilization itself, from the trading of goods to tales of ancient goddesses and kings. Follow the evolution of the written word, from millennia-old carvings in an Egyptian turquoise mine to our modern-day alphabets.
Closeup of slime branching out. | From "NOVA: Secret Mind of Slime"
Episode
53:17
Nova

S47 E12: Secret Mind of Slime

Scientists investigate the bizarre "intelligence" of slime molds, which appear to learn and make decisions — without a brain. These cunning, single-celled blobs can navigate mazes and create efficient networks. Can they also redefine cognition?
Microscopic image of DNA. | From "NOVA: Human Nature"
Episode
1:33:41
Nova

S47 E11: Human Nature

Our DNA can determine attributes from eye color to medical predispositions. An extraordinary technology called CRISPR allows us to edit human DNA, possibly eliminating genetic diseases or choosing our children's features. But how far should we go?
Active loading indicator