Where to stream Catalyst

Season 21

Catalyst

Season released 14th Apr, 2020.

Season 21 Episodes

S21 Episode 1

How Food Works: Part 1

Paul discovers that Australia's most popular fruit, the Cavendish banana, faces the threat of extinction.

57 mins  ·  Tue, 14 Apr 2020

S21 Episode 2

How Food Works: Part 2

Paul investigates the science behind cryogenic freezing and how it's used to make sure frozen fish tastes as good as fresh; Clare visits a gelato factory and finds out why humans desire junk food.

55 mins  ·  Tue, 21 Apr 2020

S21 Episode 3

Teeth Clinic

The team set up a pop-up dental clinic in Western Sydney to understand what the most common dental complaints are for Aussies.

56 mins  ·  Tue, 28 Apr 2020

S21 Episode 4

Asteroid Hunters

Astrophysicist Professor Tamara Davies discovers that asteroids, an ever present threat to our survival, could be responsible for kickstarting life on Earth.

56 mins  ·  Tue, 5 May 2020

S21 Episode 5

Building Greener Cities

Physicist Dr Niraj Lal examines engineering solutions that might make cities greener, cleaner, and more efficient places to live.

54 mins  ·  Tue, 12 May 2020

S21 Episode 6

Kill or Cure? The Story of Venom

Australia is home to a large number of venomous animals - some so lethal they can kill a human in minutes. But within the deadly cocktail of their venom, lies a potential pharmacy of drugs that could save your life.

30 mins  ·  Tue, 9 Mar 2021