Where to watch in Canada
Checked October 11, 2026
Available in 3 other countries 3 with streaming
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Overview
Catalyst is Australia's premier science investigation series. Each week the team brings you stories from Australia and around the world, meeting scientists at the forefront of discovery.
Seasons and episodes
10 seasons164 episodes
Series 23
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E1 The Secret Lives of Our Urban Birds
Nature journalist and self-confessed bird-nerd, Ann Jones, heads out on an urban safari through Melbourne, uncovering the secret lives of the city's feathery friends.
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E2 The Big Brew Challenge
Celebrate the science of beer with chef Paul West, as three teams of budding brewmasters take on the challenge to make their best homebrew. But do they have what it takes to impress our panel of international judges?
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E3 Miracle Babies: Operation Hope
This intimate look at the awe-inspiring world of fetal surgery is a story of hope and trailblazing medicine. Follow pioneering doctors as they help parents face agonising decisions about their baby's future.
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E4 Forever Young? The Rise of Injectables
Australians spend over a billion dollars on injectable treatments annually and clients seeking "tweakments" are getting younger. We explore the psychology behind this trend and the consequences of pursuing perfection.
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E5 Solar Storms: A Warning from Space
Solar storms, eruptions from the Sun with the power of 20 nuclear bombs, have the potential to hit earth in just two days. A direct hit would obliterate our technology from satellites to smart phones. We need advance warning.
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E6 The Science of Relationships
The happiest 50-year-olds are living to be the healthiest 80-year-olds. Their secret? Relationships. Lily Serna explores how to live a healthier and more satisfying life through the science of our social connections.
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