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Season 23 Episode
- Season 22 Are We Killing Our Koalas?
- Season 22 Mars: Our Second Home?
- Season 22 Mars: The Hunt For Life
- Season 22 Kill or Cure: The Story of Venom
- Season 22 Cancer: A Story of Hope
- Season 22 The Truth About Fasting
- Season 22 The Wildlife Revolution
- Season 22 The Grid: Powering the Future
- Season 22 Doctor at the Door: The McClellands
- Season 22 Doctor at the Door: The Kulkarnis
- Season 22 Magic and the Brain: The Science of Illusion
Catalyst - Season 22 Episode 2 Mars: Our Second Home?
0.00 30 minutes In the first of a two-part special, astrophysicist Professor Tamara Davis and astronomer Greg Quicke meet the Australian scientists on a mission to solve the many challenges of putting people on the red planet.
