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Dr Karl Podcast

triplej
Climate Change
Evolution
Alcohol
Science With Dr Karl Live
Consciousness
Black Holes
Artificial Intelligence
Global Warming
Ants
Mathematics
Rainbows
Nutrition
Human Body
Hormones
Bees
Hay Fever
Sustainability
Gravity
NASA
Misinformation

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!

PublishesWeeklyEpisodes681Founded21 years ago
Number of ListenersCategory
Science

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Artwork for Dr Karl Podcast

Latest Episodes

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 questi... more

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 http... more

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 Luc... more

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 Mor... more

Key Facts

Accepts Guests
Contact Information
Podcast Host
Number of Listeners
Find out how many people listen to this podcast per episode and each month.

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Recent Guests

Dr Johnny Marie
Guest answering a question about urinary/shudder phenomenon
Episode: Cold sores, facial hair and double rainbows
Dr Seamus
Guest answering cold sore question and herpes basics
Episode: Cold sores, facial hair and double rainbows
Dr Alex
Guest discussing water divining and anomalous readings
Episode: Cold sores, facial hair and double rainbows
Dr Nathaniel
Guest discussing facial hair biology and shampoo routines
Episode: Cold sores, facial hair and double rainbows
Dr Josh
Guest discussing rainbows and optics
Episode: Cold sores, facial hair and double rainbows
Dr Lucas
Guest discussing celestial orbits
Episode: Cold sores, facial hair and double rainbows
Dr Kevin
Guest about near-miss driving and autonomic responses
Episode: Cold sores, facial hair and double rainbows
Dr Sarah
Veterinarian who joined to discuss the sneeze topic
Vet, Melbourne
Episode: Dirt bikes, flat earthers and illegal drugs
Dr Zara
Astronomist answering questions about astronomy and Earth-Sun distance
Melbourne, Australia
Episode: Dirt bikes, flat earthers and illegal drugs

Hosts

Dr Karl Kruszelnicki
Host of science-focused shows with a long-running presence in Australian science communication.
Lucy Smith
Co-host introducing segments, guiding show flow, and presenting scientific explanations.

Reviews

4.7 out of 5 stars from 5k ratings
  • Love ittttt

    I found this show when I was like 12 and fell in love with it! I do wish that there could be less guests on the show tho.

    Apple Podcasts
    5
    No name hahehahe
    Australiaa month ago
  • Great

    Great

    Apple Podcasts
    5
    Fartshartpoo
    Australiaa month ago
  • Six seven

    Six seven

    Apple Podcasts
    5
    Perso_n
    Australia2 months ago
  • Incredible

    🍝

    Apple Podcasts
    5
    Squidkid🦑
    Australia2 months ago
  • This show is kinda gross

    I hate this show pls whack yourself on the head thanks just kidding this this show is awesome so glad for your old existence.

    Apple Podcasts
    1
    brilliancthggnff
    Australia2 months ago

Listeners Say

Key themes from listener reviews, highlighting what works and what could be improved about the show.

Guests are described as credible and the science is made approachable.
Listeners praise accessible explanations and engaging energy from the hosts.
Audience values curious, family-friendly science content and practical demos.

Chart Rankings

How this podcast ranks in the Apple Podcasts, Spotify and YouTube charts.

Apple Podcasts
#110
United Kingdom/Science
Spotify
#2
Australia/Science
Apple Podcasts
#200
Australia/Top Podcasts
Apple Podcasts
#6
Australia/Science
Apple Podcasts
#53
Indonesia/Science
Apple Podcasts
#87
New Zealand/Science

Talking Points

Recent interactions between the hosts and their guests.

Cold sores, facial hair and double rainbows
Q: Why does cold sore appear in the same place each time?
Because the herpes virus lies dormant in the nerves that control that facial region and reactivates along the same nerve path, causing a recurrent outbreak in the same area.
Gamer brain, VR immersion and gacha gambling
Q: What kind of questions can you answer for us today, Marcus?
Marcus explains he can discuss topics around video games, VR, and their applications in education, health, and social behavior, though not every answer will be perfect.
Shower farts, regenerative bodies and bass face
Q: What is consciousness, and can we ever fully understand it?
Consciousness remains a profoundly challenging topic; theories like the Girdle Escher Bach framework suggest there are fundamental limits to proving all aspects of knowledge, with consciousness being one of the trickier areas to fully grasp.
Shower farts, regenerative bodies and bass face
Q: Are there limits to how much the brain can store, like a hard drive?
The brain stores information through neural connections and patterns, not digital bits; estimates suggest a capacity in the range of several thousand terabytes for information storage when considering encoding and retrieval dynamics.
Shower farts, regenerative bodies and bass face
Q: Why do farts smell more in the shower?
Because the shower confines the space, clothing is not filtering the odor, air currents recirculate the scent back toward you, humidity makes smells stronger, and warmth enhances olfactory perception.

Audience Metrics

Listeners, social reach, demographics and more for this podcast.

Listeners per Episode
Gender Skew
Location
Interests
Professions
Age Range
Household Income
Social Media Reach

Frequently Asked Questions About Dr Karl Podcast

What is Dr Karl Podcast about and what kind of topics does it cover?

This science-focused show features a legendary Australian science communicator and a poised co-host guiding conversations with a rotating roster of experts. Episodes span everything from death studies and bioethics to AI safety, space exploration, and everyday physics, all explained with curiosity, humor, and accessible demos. Guests range from university researchers and industry engineers to science writers, while listener questions drive practical explanations of health, technology, and the cosmos. A notable strength is the strong emphasis on clear, relatable science communication and real-world applications, often tying complex topics to daily life or current events. The format—live Q&A, deep-dive interviews, and audience-driven tangents... more

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How many listeners does Dr Karl Podcast get?

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Which podcasts are similar to Dr Karl Podcast?

These podcasts share a similar audience with Dr Karl Podcast:

1. Shirtloads of Science
2. The Science Show
3. Science Friction
4. What's That Rash?
5. What The Duck?!

How many episodes of Dr Karl Podcast are there?

Dr Karl Podcast launched 21 years ago and published 681 episodes to date. You can find more information about this podcast including rankings, audience demographics and engagement in our podcast database.

How do I contact Dr Karl Podcast?

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Where can I see ratings and reviews for Dr Karl Podcast?

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What guests have appeared on Dr Karl Podcast?

Recent guests on Dr Karl Podcast include:

1. Dr Johnny Marie
2. Dr Seamus
3. Dr Alex
4. Dr Nathaniel
5. Dr Josh
6. Dr Lucas
7. Dr Kevin
8. Dr Sarah

To view more recent guests and their details, simply upgrade your Rephonic account. You'll also get access to a typical guest profile to help you decide if the show is worth pitching.

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