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Next up on the Radio

  • Wednesday 18th March 2026
    7:00 pm - 7:30 pm

    Dr Karl joins Kelly Higgins-Devine on ABC Brisbane/Queensland

  • Thursday 19th March 2026
    11:00 am - 12:00 pm

    Dr Karl joins Lucy Smith on ABC Triple J Science Mornings

  • Thursday 19th March 2026
    2:00 pm - 2:30 pm

    Dr Karl joins Joel Rheinberger on ABC Hobart

  • Thursday 19th March 2026
    2:30 pm - 3:00 pm

    Dr Karl joins Alice Matthews on ABC Canberra

  • Thursday 19th March 2026
    2:30 pm - 3:00 pm

    Dr Karl joins Jess Ong on ABC Darwin


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Nail clippings, boobs, spicy food

Do you hear the voice in your head or do you think you think it? why does eating chilli make you feel good? does the sun rotate? Dr Karl answers these questions and more on triple j Mornings, with host Lucy Smith.

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Flies in winter, seeing underwater and concussions from gigs

Why do drug addicts like chocolate milk? Does donating blood burn calories? Where did the English language come from?


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Muscle memory, buttery sweat and our robot overlords

Where does the wind come from? Can we affect other peoples dreams? Why do some people smell like butter when they sweat?

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Dying suns, falling in love and earwax

What makes a planet a planet? Why haven’t we gone back to the moon? What’ll happen to the International space station when we’re done with it? Dr Karl is away for the month, so science journalist Bianca Nogrady is stepping in to be your science sherpa on triple j. Joining her today was Professor Lisa […]