Almost all of the regional and remote communities in Queensland do not have fluoridated drinking water, so why is this... more

Dr Karl uncovers a lifelong Australian quest to restore comfort and hearing with custom made eardrum transplants. Called Cleardrums, Professor... more

Dr Karl (former father of the year) talks with Dr Nick Fuller (recent dad) about teaching children how to eat.... more

Why use a balloon to hunt the most elusive suff in the Universe? Dr Sirks takes Dr Karl through the... more

Atmospheric Carbon is burning us up. CO₂ is the big culprit but what about methane? Industry calls it "natural gas"... more

Weight loss medicines are never easy. What happens when your brain says you're full? Dr Karl and Professor Clare Collins... more

Our warming world means more humidity.  You can't see it but you can feel it.  Professor Ollie Jay introduces Dr... more

Summer heat waves are increasing - so AC or fan, what is best? The answer becomes unclear when air temperatures... more

Author and astrophysicist Marcus Chown is a great explainer. A British stargazer, he studied under Richard Feynman in California. Dr... more

Physics on both galactic and personal scales are explored and answered with Dr Jessica Bloom and Dr Karl. drkarl.com .

We are so lucky to be alive. Dr Sara Webb's 'The Little book of Cosmic Catastrophes' looks at dangerous galactic... more

Dr Karl consults with circular economy expert, experienced waste manager, change maker and garbologist Belinda Chellingworth. Waste is expensive... more

A shameless piece of cross promotion for ABC podcast 'What the Duck' with Dr Ann Jones about plant and animal... more

Global Warming is caused by burning fossil fuels.  "Slick: Australia's Toxic Relationship With Big Oil " is journalist Royce Kurmelovs'... more

Dr Karl talks with the Australian working on the surface of Mars, Dr Adrian Brown from NASA. Hear how AI... more

Dr Frederic Bertley is a leading educator, President and CEO of the Center for Science and Industry (COSI), one of... more

Feelings live in our brain. Some are painful like anxiety and addiction and can ruin lives. So why aren't hypnotherapy... more

What will our human space colonies look like? Dr Karl checks with research spanning more than 10,000 years. Meet University... more

Stand-up comedian, ex-maths teacher and author Matt Parker chats about his bestselling book on three-sided figures called Love Triangle. Dr... more