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Next up on the Radio
Wednesday 15th July 2026
9:30 am - 10:00 amWednesday 15th July 2026
10:30 am - 11:00 amDr Karl joins Susan Graham-Ryan on ABC Townsville
Wednesday 15th July 2026
7:00 pm - 7:30 pmDr Karl joins Kelly Higgins-Devine on ABC Brisbane/Queensland
Thursday 16th July 2026
9:30 am - 10:00 amDr Karl joins Rory McClaren on ABC Adelaide
Thursday 16th July 2026
11:00 am - 12:00 pmDr Karl joins Lucy Smith on ABC Triple J Science Mornings
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Recent Articles & Stories
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Observable universe, new elements and black holes
Dr Karl is away for the month, so science journalist Bianca Nogrady is stepping in to be your science sherpa on triple j. And joining her today was Dr Jess Bloom, astrophysicist from the University of Sydney.
Australian Geographic The Fred Hollows Foundation’s Arclight
Dr Karl looks at how the Foundation’s portable and cheap ophthalmoscope is helping save lives and prevent avoidable blindness across the developing world. TODAY, MORE THAN 32 million people around the world are blind, while a further 190 million are visually impaired. There is a humanitarian and economic benefit in remedying this situation. For every […]
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Hungry galaxies, climate change and sleeping with eyes open
How will the galaxy Andromeda be feeding on our galaxy The Milky Way? Plus climate change, a positive future and sleeping with your eyes open.
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Itchy ankles, swelling cheeks and bellybutton fluff
Why do some people get itchy legs when they exercise? Plus: what causes some people’s cheeks to swell and tingle while eating cheese? And why is bellybutton fluff always blue?
