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Last word

New Scientist's popular Last Word series gives readers the opportunity to answer each other's questions about everyday science phenomena, from the shape of scones to the evolutionary history of toenails. To answer a question or ask a new one, email lastword@newscientist.com

An artist's illustration of the longest black hole jet system ever observed. Nicknamed Porphyrion after a mythological Greek giant, these jets span roughly 7 megaparsecs, or 23 million light-years

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What would happen if a black hole jet hit the sun or Earth?

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Group of Asian friends having fun enjoying beach camping in summer

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Is music an essential part of human evolution? Part 2

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Many living earthworms for fishing in the soil, background; Shutterstock ID 1932989285; purchase_order: -; job: -; client: -; other: -

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Can worms regenerate if they are cut in half longitudinally?

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J7JGYD Cuban Rock Iguana, Cyclura nubila, Jardines de la Reina, Cuba

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This week’s new questions

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Issue no. 3520 published 7 December 2024

New Scientist issue 3520 cover