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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

(Original Caption) 7/5/1946-The roller coaster is a rough ride, but do they love it! This unposed photo was taken by the intrepid photographer from a front seat, as the car made a stomach-dropping descent. A companion clutched the camera while he clicked the shutter. ACME ROTO SERVICE FOR IMMEDIATE RELEASE BPA 2 #124

Last Word

Why do we scream in fear?

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3BHN5M7 A woman holds a sign that reads Greed is not a virtue during a protest across the street from Florida Congresswoman Maria Elvira Salazar's Office.

Last Word

What good is greed? part 2

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PGRFBG beautiful exoplanet, part of an alien binary star system with a red and blue star (3d space illustration)

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Can a planet orbit a binary star system in a figure of eight?

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Cute toddler and a baby girl having a play date in the park

Last Word

This week’s new questions

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Issue no. 3578 published 17 January 2026

New Scientist issue 3578 cover
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