An illustration of the coronavirus. | "Nova: Decoding COVID-19"

Decoding COVID-19

The coronavirus SARS-CoV-2 has upended life as we know it in a matter of mere months. But at the same time, an unprecedented global effort to understand and contain the virus-and find a treatment for the disease it causes-is underway. Join the doctors on the front lines of the fight against COVID-19 as they strategize to stop the spread, and meet the researchers racing to find treatments and vaccines. Along the way, discover how this devastating disease emerged, what it does to the human body, and why it exploded into a pandemic.

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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?

  • 2020-09-20T15:00:00-07:00
  • 2020-09-20T18:00:00-07:00

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.

  • 2020-09-25T05:00:00-07:00
  • 2020-09-27T15:00:00-07:00
  • 2020-09-27T18:00:00-07:00

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?

  • 2020-10-02T05:00:00-07:00
  • 2020-10-04T15:00:00-07:00
  • 2020-10-04T18:00:00-07:00

Animal Espionage

Camera traps and drones are revolutionizing the study of wildlife by providing an up-close look at animals without disturbing them. See how these technologies are helping us understand everything from mysterious whale behavior to tiger migration.

  • 2020-10-09T05:00:00-07:00
  • 2020-10-11T15:00:00-07:00
  • 2020-10-11T18:00:00-07:00

Nature's Fear Factor

When top predators disappeared from Mozambique's Gorongosa National Park, other animals fell into unusual patterns. Now scientists are reintroducing wild dogs to restore the park's "landscape of fear" and with it the natural balance of the ecosystem.

  • 2020-10-16T05:00:00-07:00