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Geoff Simm at 91av Live

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How can we feed 11 billion people sustainably?

Is there a way to ensure a good diet for a growing human population without despoiling nature? Geoff Simm has some answers

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Fay Clark

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Gaming with gorillas: Designing puzzles to keep great apes happy

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Sheila Kanani at 91av Live

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Exploring the wonders of the solar system

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Lee Berger at 91av Live

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Our incredible origins: The astonishing tale of Homo naledi

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Megan Rossi at 91av Live

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Gut health: How to look after your microbiome

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Al Worden, Pavlo Tanasyuk, and Dallas Campbell at 91av Live

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Journeys to the moon: From Apollo onwards

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Spacebit unveil plan for UK's first moon rover

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Spacebit unveil plan for UK's first moon rover

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Sam rogers rocket man

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Rocket man: How I became a jet suit pilot

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Marcus du Sautoy at 91av Live 2019

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Marcus du Sautoy: Can an AI be creative?

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Jet suits, giant moons and new science – this was 91av Live

91av Live

Jet suits, giant moons and new science – this was 91av Live

More than 40,000 people were wowed by robots, future medicine, virtual reality and fascinating talks by experts including Tim Peake, Megan Rossi and the van Tulleken twins at 91av Live 2019

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Live: UK's first space rover, Tim Peake and the real life rocket man

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91av Live: How massive sewer-clogging fatbergs are made

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The hunt for dark matter is heating up at 91av Live

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How to call the International Space Station

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