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 4th May 2016
    10:00 am - 10:30 am

  • Dr Karl joins Phil Staley on ABC FNQ Mornings

    Wednesday 4th May 2016
    10:00 am - 10:30 am

  • Dr Karl joins Robbie Brechin ABC Adelaide

    Wednesday 4th May 2016
    11:00 am - 11:30 am

View full schedule

From the Blog


The gene that fights cancer

GREAT MOMENTS IN SCIENCE: Why are bigger animals such as elephants less likely to get cancer than small animals like mice — and humans? A protective gene called p53 may be the answer, says Dr Karl.


Emoji lords to release 67 new symbols

GREAT MOMENTS IN SCIENCE: If you love smiley faces you’ll weep tears of joy about the news we’re about to get more emojis! Dr Karl reveals who holds the ultimate emoji power.

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