Join Dr Karl Kruszelnicki, Lucy Smith and their scientific guests, with a bunch of curious triple j listeners for a weekly injection of science, myth-bashing and answers!

Latest episodes

Glowing planets, shrinking brains and living till you're 150

October 1, 2026 · 40 min

How is it possible to day dream? Can screen time and AI impact how you age? And what makes the colours of the sunset? Dr Karl answers these questions and more on triple j Mornings with Tanya Bunter. Got a question for Dr Karl - submit it…
The full moon, earworms and tickling

September 24, 2026 · 40 min

Why does cola taste different when it's in a can? How come we shouldn't reheat meat more than once? And why do we sneeze when we get into hot cars? Dr Karl answers these questions and more on triple j Mornings with Tanya Bunter. Got a…
Honeybees, climate change and pollination

September 17, 2026 · 42 min

Why is the sun so good at removing tomato stains? Why do plants change colour in response to cold weather? And are we getting closer to what was portrayed in the movie Avatar? Dr Rose Kerr and Dr Clancy Lester answer these questions and…
Radio stars, spiral galaxies and threadworms

September 10, 2026 · 41 min

When will Australia have a total solar eclipse? What determines the life cycle of a star? And why does our body go into 'survival mode'? Dr Karl answers these questions and more on triple j Mornings with Lucy Smith. Got a question for Dr…
The third eye, scented candles and norovirus

September 3, 2026 · 40 min

Why do our ears produce wax? What is the storage capacity of the human brain? And will we ever run out of music combinations? Dr Karl answers these questions and more on triple j Mornings with Lucy Smith. Got a question for Dr Karl…
Black tea, pins & needles and toilet doors

August 27, 2026 · 40 min

Does sneezing cure nausea? Why do brown paper bags ripen produce? And how does aromatherapy work? Dr Karl answers these questions and more on triple j Mornings with Lucy Smith. Got a question for Dr Karl - submit it here…
Calcium v. iron, E=mc² and The Pill

August 20, 2026 · 40 min

Is nicotine a laxative? Are mental health conditions hereditary? And can you retrain gut bacteria? Dr Kate Thomas, Dr Caitlin Thurn and Dr Karl answer these questions and more on triple j Mornings with Lucy Smith. Got a question for Dr…
Axolotls, hydration and escalators

August 13, 2026 · 42 min

What does space smell like? Why does a beer taste different with breakfast? And why is the 'feels like' temperature different to the actual temperature? Dr Karl answers these questions and more on triple j Mornings with Lucy Smith. Got a…