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 Nicole Dyer on ABC Gold Coast

    Wednesday 26th July 2017
    9:30 am - 10:00 am

  • Dr Karl joins Phil Staley on ABC Cairns

    Wednesday 26th July 2017
    10:30 am - 11:00 am

  • Dr Karl joins Zan Rowe on ABC Triple J Science on Mornings

    Thursday 27th July 2017
    11:00 am - 12:00 pm

View full schedule

From the Blog

It’s complicated: The sex life of coral

GREAT MOMENTS IN SCIENCE: Stuck in one spot, waiting for the full moon to pass and the perfect temperature to arrive, and your choice of mate left to the tide: when you’re coral, reproduction is mind-bogglingly complicated, writes Dr Karl.

Killer heat waves

Dr Karl investigates the growing global trend of heat waves, which have killed more Australians than all other natural disasters combined. MOST AUSTRALIANS remember that the Black Saturday bushfires in Victoria in 2009 killed 173 people. But the crippling heat wave that came alongside them killed more than twice that number: 374 people. The 2003 […]

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