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  • Immune cells in the blood drive cognitive ageing — blocking them improves memory

    Immune cells in the blood drive cognitive ageing — blocking them improves memory0

    Age-related memory decline could be caused by ageing immune cells.Credit: JasonDoiy/Getty A type of immune cell circulating in the blood contributes to cognitive ageing, and blocking its effects can reverse the changes, suggests a mouse study published in Immunity on 14 May1. T cells have many jobs, chiefly destroying pathogens. But as people age, a

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  • Real-life Snuffleupagus found swimming in the Great Barrier Reef

    Real-life Snuffleupagus found swimming in the Great Barrier Reef0

    Get the Popular Science daily newsletter💡 Breakthroughs, discoveries, and DIY tips sent six days a week. It’s undeniable. The bright reddish-orange hues, the fuzziness, the snout…there simply is no other way to put it. This unique fish looks exactly like Mr. Snuffleupagus from Sesame Street. “Once you see it, the resemblance to Snuffleupagus is impossible

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  • Perseverance Stuns in New Selfie

    Perseverance Stuns in New Selfie0

    NASA’s Perseverance rover recently took a self-portrait against a sweeping backdrop of ancient Martian terrain at a location the science team calls “Lac de Charmes.” Assembled from 61 individual images, the selfie shows Perseverance training its mast on a rocky outcrop in the foreground after creating a circular abrasion patch, with the western rim of

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