CRISPR gene-edited food has gone on sale commercially for the first time. The team finds out about this ‘super tomato’ which has been created by a startup in Japan. Have you ever wondered why leaves change colour in the autumn? The team discusses an evolutionary explanation suggesting that leaf colour is a signal. Following Greta Thunberg’s latest speech at the pre-COP26 event Youth4Climate, the team reflects on Germany’s recent election, which could be very positive for action on climate change. They also discover how mini-black holes may have created some of the moon’s craters, and they find out why humans don’t have tails. On the pod are Rowan Hooper, Penny Sarchet and Abby Beal. To read about these stories and much more, subscribe at newscientist.com/podcasts.

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