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Nature.com






Sciencedaily.com

Scientists say we’ve been treating Alzheimer’s all wrong

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Alzheimer’s isn’t just one problem—it’s a tangled mix of biology, aging, and overall health. That’s why drugs targeting a single factor have fallen short, even as new treatments show modest benefits. Scientists are now pushing toward multi-pronged strategies, from gene editing to brain-cell rejuvenation and gut health interventions. The goal: stop treating Alzheimer’s as one disease and start tackling it as a complex system.

https://www.sciencedaily.com/releases/2026/04/260409101111.htm



Gravitational waves may be hidden in the light atoms emit

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Scientists have proposed a surprising new way to detect gravitational waves—by observing how they change the light emitted by atoms. These waves can subtly shift photon frequencies in different directions, leaving behind a detectable signature. The effect doesn’t change how much light atoms emit, which is why it’s gone unnoticed until now. If confirmed, this approach could lead to ultra-compact detectors using cold-atom systems.

https://www.sciencedaily.com/releases/2026/04/260409101109.htm


This superconductivity dies then comes back to life

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A strange new kind of superconductivity has been uncovered in uranium ditelluride (UTe2), where electricity flows with zero resistance—but only under extremely strong magnetic fields that should normally destroy it. Even more surprising, the superconductivity disappears at first and then dramatically reappears at even higher fields, earning it the nickname the “Lazarus phase.”

https://www.sciencedaily.com/releases/2026/04/260409101108.htm


These cheap solar cells work better because they’re flawed

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Perovskite solar cells shouldn’t work as well as they do—but they do. Scientists have now discovered that defects inside the material actually help, creating networks that separate and guide electric charges efficiently. Using a novel imaging method, they revealed hidden structures acting like charge “highways.” This insight could unlock even more powerful, low-cost solar cells.

https://www.sciencedaily.com/releases/2026/04/260409101104.htm


sci.news


Permian Fossil is Earliest Evidence of Rib-Powered Breathing

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Paleontologists have examined 289-million-year-old specimens of the early reptile Captorhinus aguti that preserve a covering of three-dimensional skin, a complete shoulder girdle and ribcage with cartilages, and protein remnants that predate the previous oldest-known example by nearly 100 million years.

The post Permian Fossil is Earliest Evidence of Rib-Powered Breathing appeared first on Sci.News: Breaking Science News.

https://www.sci.news/paleontology/captorhinus-aguti-rib-powered-breathing-apparatus-14685.html



Webb Captures Striking Edge-On Views of Two Planet Nurseries

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New images from the NASA/ESA/CSA James Webb Space Telescope reveal two young stars surrounded by planet-forming disks, Tau 042021 (left) and Oph 163131 (right), offering a rare edge-on glimpse into how worlds like our own may take shape.

The post Webb Captures Striking Edge-On Views of Two Planet Nurseries appeared first on Sci.News: Breaking Science News.

https://www.sci.news/astronomy/webb-edge-on-views-two-planet-nurseries-14683.html


‘Oldest Fossil Octopus’ Wasn’t One After All

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Pohlsepia mazonensis, a cephalopod species first described in 2000 from a 300-million-year-old specimen and featured in the Guinness Book of Records as the world’s oldest octopus, has been reclassified as a distant relative of nautiluses, reshaping paleontologists’ timeline for when octopuses first evolved.

The post ‘Oldest Fossil Octopus’ Wasn’t One After All appeared first on Sci.News: Breaking Science News.

https://www.sci.news/paleontology/paleocadmus-pohli-14682.html


Science.org






The Lancet

[Editorial] The future of preconception health

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In 2018, the first Lancet Series on preconception health, led by Judith Stephenson, argued that the health and nutrition of both men and women before conception is important not only for pregnancy outcomes but also for the lifelong health of their children. We called for a campaign built on a three-pronged approach that recognised the biological, individual, and public health dimensions of preconception, taking a life course view. 8 years on, that call has been only partially answered. The Series helped to broaden the concept of preconception health, beyond a narrow focus on women's health before pregnancy, to encompass the health and wellbeing of women, men, and couples before conception.

https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(26)00707-5/fulltext?rss=yes


[Comment] Liver disease: screening for the elusive adversary

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It is almost 60 years since the original Wilson and Jungner1 criteria for evaluating population screening programmes were published, with the tenets presented having stood the test of time. Liver disease is a curious case in which to apply these principles. Supporting the rationale for screening is the long-asymptomatic phase of disease and the very poor outcomes for late presentations. However, there is no consensus about who has a clinically relevant disease and who gets treatment, and the most accurate non-invasive testing approach undermines these justifications.

https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(26)00598-2/fulltext?rss=yes


[Comment] Offline: World war—is it too late?

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As you drive out of Geneva towards the airport, along the Rue de Lausanne, you pass a long, flat, ochre-brick building lying between the road and the lake: the World Trade Organization. Fenced off with formidable security, the headquarters of a body charged with administering a rules-based international trade order does not exude welcoming warmth. But it does give a hint of humanity by naming itself on the pillars erected around the building—the Centre William Rappard. Who was William Rappard? He was born in New York in 1883, but moved to Switzerland when he was 17 years old.

https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(26)00701-4/fulltext?rss=yes




Newscientist.com






Phys.org


From teeth to thorns: Coincidences shape the universal form of nature's pointed tips

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We thought it was evolution, but an experiment with pencils shows that tips like teeth and thorns may owe their rounded shape to mechanical wear. Most of us have been stung by a bee, bitten by an animal, or scratched by a thorny bush. But very few of us have probably taken a close look at nature's painful, pointed tips.

https://phys.org/news/2026-04-teeth-thorns-coincidences-universal-nature.html


SNIPE bacterial defense system shreds phage DNA before infection can begin

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What if the Trojan horse had been pulled to pieces, revealing the ruse and fending off the invasion, just as it entered the gates of Troy? That's an apt description of a newly characterized bacterial defense system that chops up foreign DNA. Bacteria and the viruses that infect them, bacteriophages—phages for short—are ceaselessly at odds, with bacteria developing methods to protect themselves against phages that are constantly striving to overcome those safeguards.

https://phys.org/news/2026-04-snipe-bacterial-defense-shreds-phage.html




Sciencenews.org