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Last word

¿ìè¶ÌÊÓƵ'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

How long would it take to speed up to 99 per cent light speed? Part 2

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2CCYRY3 Please Do Not Feed The Horses

Last Word

This week’s new questions

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EYCC30 Attraction and repulsion iron metal particles align up along the magnetic fields lines created by a bar magnet invisible to see

Last Word

Could two negatively charged black holes repel each other?

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Issue no. 3543 published 17 May 2025

New Scientist issue 3543 cover
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