Back to Show
NOVA
Why Bridges Collapse Preview
In 2018, Italy’s Morandi Bridge collapsed, tragically killing 43 people. For 50 years, the iconic bridge had withstood the elements—and stress from ever-increasing traffic. What went wrong that fateful day? And how can new engineering technology protect bridge infrastructure to prevent such tragic failures in the future?
Support Provided By
53:42
Step into the stunning cave that’s reshaping our understanding of prehistoric art.
53:41
Witness how Native North Americans have generated scientific knowledge over thousands of years.
53:34
Follow the relentless quest that led to a breakthrough treatment for a deadly disease.
Unlock with PBS Passport
53:40
Archaeologists investigate the dramatic origins of democracy in ancient Greece 2,500 years ago.
53:08
Follow the Artemis mission to bring humanity back to the Moon for the first time since Apollo.
Unlock with PBS Passport
53:25
Surprising evidence at the world’s oldest temple overturns our understanding of human history.
Unlock with PBS Passport
53:40
New evidence sheds light on the remarkable life—and mysterious collapse—of the ancient jungle city.
Unlock with PBS Passport
53:31
What if violent asteroid impacts actually jump-started life on Earth? Explore a dramatic theory.