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PODCAST · science

Dr Karl Podcast

by triplej

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!

Publisher-supplied feed metadata · PodParley refreshed Oct 10, 2026 · Source feed

Episodes

  1. Coral bleaching, bioluminescence and intelligent fish

    Do fish have feelings? Does Shark Tale stack up scientifically? And how can you get involved in marine science? Dr Karl answers these questions and more on triple j Mornings with Lucy Smith. Got a question for Dr Karl - submit it here https://ab.co/askKarl

  2. Dyslexia, El Niño and itchy ears

    Why do we dance when we hear music? Can you smell someone's sickness? And why do cats always land on their feet? Dr Karl answers these questions and more on triple j Mornings with Tanya Bunter. Got a question for Dr Karl - submit it here https://ab.co/askKarl

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

    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 here https://ab.co/askKarl

  4. The full moon, earworms and tickling

    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 question for Dr Karl - submit it here https://ab.co/askKarl

  5. Honeybees, climate change and pollination

    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 more on triple j Mornings with Lucy Smith. Got a question…

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  6. Radio stars, spiral galaxies and threadworms

    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 Karl - submit it here https://ab.co/askKarl

  7. The third eye, scented candles and norovirus

    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 - submit it here https://ab.co/askKarl

  8. Black tea, pins & needles and toilet doors

    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 https://ab.co/askKarl

  9. Calcium v. iron, E=mc² and The Pill

    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 Karl - submit it here https://ab.co/askKarl

  10. Axolotls, hydration and escalators

    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 question for Dr Karl - submit it here https://ab.co/askKarl

  11. Endometriosis, oversleeping and 'irritable male syndrome'

    Does sex get rid of a headache? If you're on hormonal contraception, do you still release an egg each month? And when you eat corn, why does it come out the other end in one piece? Dr Naomi Koh Belic and Dr Theresa Larkin answer these questions and more on triple j Mornings with Lucy Smith. Got a...

  12. Alzheimer's, furry friends and spider webs

    Why do our dogs love us so much? Can the temperature change our sense of smell? And could the evolution of dinosaurs happen again? Dr Karl answers these questions and more on triple j Mornings with Lucy Smith. Got a question for Dr Karl - submit it here https://ab.co/askKarl

  13. Cold sores, facial hair and double rainbows

    Why do you get a full body shiver after using the toilet? Why is the sky a different colour in WA? And why are celestial orbits on the same horizontal plane? Dr Karl answers these questions and more on triple j Mornings with Lucy Smith. Got a question for Dr Karl - submit it here...

  14. Dirt bikes, flat earthers and illegal drugs

    How do one way mirrors work? Why do you need to sneeze when you look at the sun? And why does driving feel faster at night? Dr Karl answers these questions and more on triple j Mornings with Sam Lane. Got a question for Dr Karl - submit it here https://ab.co/askKarl

  15. Thylacines, blocked noses and bird flu

    How different would the environment be if the thylacine wasn't wiped out? Are animal sightings symbolic? And why do bower birds collect blue items? Dr Karl and Deadly Science's Corey Tutt answer these questions and more on triple j Mornings with Lucy Smith. Got a question for Dr Karl - submit it...

  16. Pokémon, off-grid festivals and cannabinoids

    Why is red light more environmentally friendly? Which science fiction is the most realistic about our present and future? And what triggers thirst versus hunger? Dr Karl and Sci_Burst’s Ella and Isabel answer these questions and more on triple j Mornings with Lucy Smith. Got a question for Dr…

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  17. The meaning of life, shark attacks and the Large Hadron Collider

    What is the best kind of shade? Why are some rocks older than others? And is winter the dustiest season? Dr Karl answers these questions and more on triple j Mornings with Lucy Smith. Got a question for Dr Karl - submit it here https://ab.co/askKarl

  18. Gamer brain, VR immersion and gacha gambling

    Can we be profiled by the video games we play? Why does time fly when you're having fun? And what can gaming teach us about real-world science? Dr Karl and Professor Marcus Carter answer these questions and more on triple j Mornings with Lucy Smith. Got a question for Dr Karl - submit it here...

  19. Shower farts, regenerative bodies and bass face

    Should you depart from your favourite dish? How soon can we become superhumans? And where is the universe going? Dr Karl answers these questions and more on triple j Mornings with Sam Lane. Got a question for Dr Karl - submit it here https://ab.co/askKarl

  20. Dog breath, ugly cry face and sleeping pelicans

    What is the best method for dunking biscuits in a hot cuppa? Does water weigh the same inside our bodies as out? And is telling a burp from a fart just a gut feeling? Dr Karl answers these questions and more on triple j Mornings with Lucy Smith. Got a question for Dr Karl - submit it here...

  21. Magic mushrooms, hiccup rhythms and meteorites

    What will humans evolve next? How do our phones make 3D scans? And why do random objects appear in the ground? Dr Karl answers these questions and more on triple j Mornings with Lucy Smith. Got a question for Dr Karl - submit it here https://ab.co/askKarl

  22. Peptide tans, brain charge and seeing in the dark

    Are we being stalked by fish? Can pine cones predict the weather? And how do planes actually take off? Dr Karl answers these questions and more on triple j Mornings with Lucy Smith. Got a question for Dr Karl - submit it here https://ab.co/askKarl

  23. The history of burials, mushroom spore suits and hydro cremation

    Why are we obsessed with true crime? Do we need to be afraid of death? And does our water come from dead people? Dr Karl and Dr Hannah Gould answer these questions and more on triple j Mornings with Lucy Smith. Got a question for Dr Karl - submit it here https://ab.co/askKarl And stay up to date...

  24. AI ethics, touching grass and the AMOC

    Could artificial intelligence learn to have a personality? How powerful would AI become with a quantum computer? And what is the best way to adapt to a rapidly-changing world? Dr Karl and Dr Petr Lebedev answer these questions and more on triple j Mornings with Lucy Smith. Got a question for Dr...

  25. The vagus nerves, lightspeed travel and peripheral night vision

    Is blood really a liquid? Can cats predict a period? And would a soft drink save your life in the wild? Dr Karl and Dr Theresa Larkin answer these questions and more on triple j Mornings with Lucy Smith. Got a question for Dr Karl - submit it here https://ab.co/askKarl Stay up to date with...

  26. Rogue planets, dark matter and time dilation

    When are we going to start time travelling? Why does our brain slow down in near-death experiences? And how do we know what it's like to lick different surfaces? Dr Karl, Professor Geraint Lewis and Caitlin Thurn answer these questions and more on triple j Mornings with Lucy Smith. Got a question...

  27. Nose picking, dermatillomania and the weight of the world

    What do we want from the moon? Are our feet faster than us? And what's Dr Karl's favourite flavour of milk? Dr Karl answers these questions and more on triple j Mornings with Lucy Smith. Got a question for Dr Karl - submit it here https://ab.co/askKarl

  28. Leech brains, animal instincts and echidna quirks

    Is it bad to rub your eyes? What do birds get up to during migration? And which hair colour is the strongest? Zoe Kean answers these questions and more on triple j Mornings with Sam Lane. Got a question for Dr Karl - submit it here https://ab.co/askKarl

  29. Artemis II, decomposition and breast milk

    Do soap suds affect cleanliness? How does salt in the ocean form? How many mushrooms would it take to decompose a human body? Dr Karl answers these questions and more on triple j Mornings with Lucy Smith.

  30. Faster-than-light travel, the Van Allen Belt and AI space exploration

    Why do we go to space? How do you design a rocket? And what movie about space gets it most right? Dr Karl and special guest Jaxon Liebeck answer these questions and more on triple j Mornings with Lucy Smith.

  31. Super voids, satellite noise and asteroid navigation

    Are black holes really holes? How heavy is a dark star? And what happens when we're mindful? Dr Karl and Dr Laura Driessen answer these questions and more on triple j Mornings with Lucy Smith.

  32. Morning vs. motion sickness, sunburnt eyes and colour blind dreams

    Does light travel forever? Why does the dancefloor get so sweaty? And can your friends match your freak? Dr Karl answers these questions and more on triple j Mornings with Lucy Smith.

  33. Share house smells, sleeping mosquitoes and multiverse supercomputers

    Why are chocolate and coffee the perfect pair? What's the point of having hairy feet? And how do you make the perfect frozen marg? Dr Karl answers these questions and more on triple j Mornings with Lucy Smith.

  34. Synesthesia, lime cordial v. bacteria & fusion reactors

    Does a plucked hair grow back? Why does nicotine suppress your appetite? And how high is the sky? Dr Karl answers these questions and more on triple j Mornings with Lucy Smith

  35. The Challenger Legacy - new Dr Karl podcast

    Doctors, here's a sneak peek of a brand new podcast co-hosted by Dr Karl.

  36. Murphy's Law, mouth ulcers and MSG

    Where is the centre of the universe? What would happen if the speed of light increased? And what is Dr Karl's favourite maternity fact? Dr Karl answers these questions and more on triple j Mornings with Lucy Smith.

  37. Human buoyancy, acclimatising and syncing periods

    Would we die without dioxygen? Where did spiders come from? And can you learn to hack the cold? Dr Karl and Zoe Kean (OAM!) answer these questions and more on triple j Mornings with Lucy Smith.

  38. Human cannonballs, outrunning the Sun and burning beds

    Does Missy Higgins have geometrically impossible standards? How high do hot air balloons go? And how much is too much 'Sugar On My Tongue'? Dr Karl answers these questions and more in this special episode of Science with Dr Karl with Lucy Smith.

  39. Hangovers, mosquitos and manifestation

    What's the fastest way to cool down a room? How helpful is a stiff drink on a sick day? And is weeing in the shower good for you? Join Lucy, Dr Karl and special guests for a look back on some of our favourite questions from this year all about life hacks!

  40. Bionic eyes, poop schedules and aphantasia

    Does Halsey understand DNA properly? How long should we cryogenically freeze ourselves for? And can we learn how to remember everything? Join Lucy, Dr Karl and special guests for a look back on some of our favourite questions from this year all about the human body!

  41. The age of space, explosive planets and black hole portals

    How much can a black hole consume? Would anything happen if we all jumped at once? And which planet would have the best gigs? Join Lucy, Dr Karl and special guests for a look back on some of our favourite questions from this year all about space!

  42. Disappearing poos, capsaicin receptors and cane toads

    What muscles are required for a yawn? How does jewellery affect our skin? And what's the connection between atoms and physical pain? Dr Karl answers these questions and more on triple j Mornings with Lucy Smith.

  43. The speed of darkness, sticky spider webs and drinking snow

    How far into space could we hear the Js? What actually causes 'the runs'? And is drinking snow hydrating? Dr Karl answers these questions and more on triple j Mornings with Lucy Smith.

  44. Hair loss, bone density and body glitter vs. sunscreen

    Can you taste with just a sense of smell? Is it possible for your immune system to reset? And what causes period shits? Dr Karl and Dr Theresa Larkin answer these questions and more on triple j Mornings with Lucy Smith.

  45. Hair of the dog, photographic memories and shingles

    Where does all our energy go when we die? Why do humans laugh? And is rain water or tap water better for plant growth? Dr Karl answers these questions and more on triple j Mornings with Lucy Smith.

  46. Frozen vs fresh veggies, soap suds and nangs

    Would an invisible person be blind? Can you have too much muscle? And who teaches bees how to make honey? Dr Karl answers these questions and more on triple j Mornings with Lucy Smith.

  47. Frisson, cryogenic freezing and thylacines

    What's the deal with Neil the Seal? Can you sniff a fart away? And what does sickness smell like? Dr Karl and Zoe Kean answer these questions and more on triple j Mornings with Lucy Smith.

  48. Pollen peaks, jump scares and alcohol vs mood

    Is there a link between albedo and climate change? Are four-leaf clovers really that lucky? And could ants rule the world? Dr Karl answers these questions and more on triple j Mornings with Lucy Smith.

  49. Butt breathing, plovers and flammable water

    How will the universe end? What makes weight lighter in the pool? And with enough helium, could we float? Dr Karl answers these questions and more on triple j Mornings with Lucy Smith.

  50. AI consciousness, sleep paralysis and onion tears

    Do ants outweigh humans? Are we getting any more water on Earth? And why do dreams leave us on cliffhangers? Dr Karl answers these questions and more on triple j Mornings with Lucy Smith.

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ABOUT THIS SHOW

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!

HOSTED BY

triplej

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Frequently Asked Questions

How many episodes does Dr Karl Podcast have?

Dr Karl Podcast currently has 477 episodes available on PodParley. New episodes are automatically indexed when they're published to the podcast feed.

What is Dr Karl Podcast about?

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!

How often does Dr Karl Podcast release new episodes?

Dr Karl Podcast publishes regularly with 477 episodes available. Check the episode list for the typical release schedule.

Where can I listen to Dr Karl Podcast?

You can listen to Dr Karl Podcast on PodParley by clicking any episode. We provide an embedded audio player for direct listening, and you can also subscribe via your preferred podcast app using the RSS feed.

Who hosts Dr Karl Podcast?

Dr Karl Podcast is created and hosted by triplej.
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