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 1st June 2016
    10:00 am - 10:30 am

  • Dr Karl joins Phil Staley on ABC FNQ Mornings

    Wednesday 1st June 2016
    10:00 am - 10:30 am

  • Dr Karl joins Robbie Brechin ABC Adelaide

    Wednesday 1st June 2016
    11:00 am - 11:30 am

View full schedule

From the Blog


Surprising Sun facts

GREAT MOMENTS IN SCIENCE: Did you know our Sun has long-lost siblings? Dr Karl runs through some surprising facts about that big ball of nuclear energy in the sky.


Honk if you’re being hacked

GREAT MOMENTS IN SCIENCE: Dr Karl goes back to the beginning of the car hacking era in part one of a three-part series.


Stars look pointy because …

GREAT MOMENTS IN SCIENCE: Why do stars look pointy even though they’re actually spheres of plasma sans points or spikes? Dr Karl dissects the anatomy of vision.

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