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Next up on the Radio
Wednesday 9th July 2025
9:30 am - 10:00 amWednesday 9th July 2025
7:00 pm - 7:30 pmDr Karl joins Kelly Higgins-Devine on ABC Brisbane/Queensland
Thursday 10th July 2025
11:00 am - 12:00 pmDr Karl joins Lucy Smith on ABC Triple J Science Mornings
Thursday 10th July 2025
2:00 pm - 2:30 pmDr Karl joins Joel Rheinberger on ABC Hobart
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Rising sea levels, brain's exploding and evolution
Is a Googleplex the biggest single number? Are rising sea levels only caused by ice melting? Why do we get blocked noses?
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Life on Mars, space welds, menstrual moon cycles
Are we still seeing light from The Big Bang? Does space end? Is a earthquake on Mars called a Mars-quake? Dr Karl answers this question and more on triple j Mornings, with Professor Don Kurtz and host Lucy Smith.
Great Moments in Science The colour of bird poo
Bird poo is usually coloured white. This is because of how birds excrete excess nitrogen. But the poo can sometimes be a different colour – depending on the food. And different creatures have evolved three main ways of getting rid of excess nitrogen.
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Big dinosaurs, sun flames, four seasons in one day
How does addiction work? Why were dinosaurs so big? Does stress shorten your life?
