Dr Karl

About Karl

When NASA classified Karl as non-astronaut material in 1981 he walked straight into ABC Radio station Double J and offered to talk about the Space shuttle launch. They said ‘Okay’ and his radio career took off from there. ‘Great Moments In Science’ ran on Double J while Karl moonlighted as a medical student. read full bio

Where is Karl?

You can catch Karl all over the airwaves, check out his upcoming time slots.

  • Dr Karl joins Paula Tapiolas on ABC Townsville

    Wednesday 5th October 2016
    10:00 am - 10:30 am

  • Dr Karl joins Phil Staley on ABC FNQ Mornings

    Wednesday 5th October 2016
    10:00 am - 10:30 am

  • Dr Karl joins Robbie Brechin ABC Adelaide

    Wednesday 5th October 2016
    11:00 am - 11:30 am

View full schedule

From the Blog

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The science of sinkholes

GREAT MOMENTS IN SCIENCE: Sinkholes seem to happen out of the blue, swallowing up cars, houses or even whole streets. Dr Karl gets stuck into the science of sinkholes.

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How many places of pi do we need?

GREAT MOMENTS IN SCIENCE: Pi is a very long and a very important number, but how many decimal places of it do we really need to know? Dr Karl investigates.

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