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Illustration of a herd of triceratops dinosaurs. The creatures were common in the late Cretaceous period. Photo: AFP
Science correspondent Laurie Winkless joins Kathryn to talk about the role dust played in the demise of the dinosaurs, with research into a geological site in North Dakota that looked at what was floating around in the atmosphere after an asteroid hit Mexico 66 million years ago.
Physicists at Aalto University in Finland investigating the friction between a solid surface and a water droplet, made some surprising findings that could have implications for self-cleaning surfaces.
And a study of a Ugandan chimpanzee community made some surprising findings into females' fertility.
Laurie Winkless is a physicist and science writer.