91av

Last word

91av'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

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Last Word

Should we genetically modify humans we send to Mars? Part 2

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Last Word

Does life require Earth’s rate of rotation to lie in a certain range?

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Last Word

This week’s new questions

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Issue no. 3532 published 1 March 2025

91av issue 3532 cover
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