Featured episode
Nov. 4, 2020
Catalyst 304: Body and mind
Nov. 4, 2020
Catalyst 303: Isotopic forensics
July 29, 2020
Catalyst 302: Looking for signs that point to life
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Previous episodes
July 29, 2020
Catalyst 301: Eyes on Mars
Nov. 25, 2019
Season 3: Coming in 2020
July 3, 2019
Catalyst: Best of Season 2
June 26, 2019
Catalyst: ELL teaching programs
June 26, 2019
Catalyst: Closer look at asteroid Bennu
June 19, 2019
Catalyst: Racing against infectious diseases
June 19, 2019
Catalyst: inclusion and exclusion bias
June 19, 2019
Catalyst: Distracted driving
June 19, 2019
Catalyst: Recycled asphalt
June 12, 2019
Catalyst: Walk on Mars Project
June 12, 2019
Catalyst: Urban Heat Island
June 12, 2019
Catalyst: Jupiter Ice Moon
June 12, 2019
Catalyst: NASA satellite images of our solar system
May 22, 2019
Catalyst: Photosynthesis
May 22, 2019
Catalyst: Drone search and rescue
April 3, 2019
Catalyst: 3D car engine parts
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American Masters 'Doc Severinsen'
Master trumpeter Doc Severinsen continues to defy nature well into his 90s with a grueling schedule of touring, performing and teaching.
Nova 'Picture a Scientist'
Women make up less than a quarter of STEM professionals in the United States, and numbers are even lower for women of color.
Go green this April with Earth Month programming
Start off Earth Month early by tuning in to Arizona PBS! Discover diverse ecosystems, dynamic climates and intricate support systems.