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 2nd December 2015
    10:00 am - 10:30 am

  • Dr Karl joins Phil Staley on ABC FNQ Mornings

    Wednesday 2nd December 2015
    10:00 am - 10:30 am

  • Dr Karl joins Robbie Brechin ABC Adelaide

    Wednesday 2nd December 2015
    11:00 am - 11:30 am

View full schedule

From the Blog

The highly consistent factors in successful weight loss diets were reducing calories and doing a bit more exercise (Source: thegoodphoto/iStockphoto)

Two simple tips to help you lose weight

GREAT MOMENTS IN SCIENCE: Weight loss plans don’t have to be complicated. The best plan, says Dr Karl, is to reduce your total calorie intake, and do more exercise.

The smartphone is a universal machine (iStockphoto: krystiannawrocki)

Evolution of the universal machine

GREAT MOMENTS IN SCIENCE: What do Apple, the smartphone and Alan Turing have in common? Dr Karl cracks the history of the universal machine.


Sharing the scent of fear

GREAT MOMENTS IN SCIENCE: Fear can be catching, and it’s shared by smell. Dr Karl sniffs out what we know about the scent of fear.

View all posts

Follow Karl on Instagram