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6 w

DNA from Napoleon's 1812 army identifies pathogens likely responsible for the army's demise during retreat from Russia

DNA from Napoleon's 1812 army identifies pathogens likely responsible for the army's demise during retreat from Russia

In the summer of 1812, French emperor Napoleon Bonaparte led about half a million soldiers to invade the Russian Empire. But by December, only a fraction of the army remained alive. Historical records suggest that starvation, cold, and typhus led to their demise.

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6 w

How axolotls rely on their 'fight or flight' network to regenerate body parts

How axolotls rely on their 'fight or flight' network to regenerate body parts

Biologists have long been fascinated by the ability of salamanders to regrow entire limbs. Now Harvard researchers have solved part of the mystery of how they accomplish this feat—by activating stem cells throughout the body, not just at the injury site.

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6 w

Giving waste plastics a second life as high-performance carbon nanomaterials

Giving waste plastics a second life as high-performance carbon nanomaterials

A study published in Nature Communications has shown that, rather than being discarded, plastics can be transformed into valuable carbon nanomaterials that help solve both energy and environmental challenges.

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6 w

Search for elusive neutrino multiplets tightens limits on cosmic particle origins

Search for elusive neutrino multiplets tightens limits on cosmic particle origins

The origins of extremely high-energy particles that fill the universe—such as protons, electrons, and neutrinos—remain one of the longest-standing mysteries in modern astrophysics. A leading hypothesis suggests that "explosive transients," including massive stellar explosions (supernovae) and tidal disruption events (TDE) caused by stars being torn apart by black holes, could be the cosmic engines driving these energetic particles. Yet, this idea has never been rigorously tested.

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6 w

Bacterial motility helps uncover how self-propelled particles distribute in active matter systems

Bacterial motility helps uncover how self-propelled particles distribute in active matter systems

A collaborative team of physicists and microbiologists from UNIST and Stanford University has, for the first time, uncovered the fundamental laws governing the distribution of self-propelled particles, such as bacteria.

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6 w

AI matches human graders in ranking macroeconomics exam text responses

AI matches human graders in ranking macroeconomics exam text responses

How does high population growth affect gross domestic product? Economics students are all too familiar with exam questions like this. As free-text questions, they require not only specialist knowledge but also the ability to think and argue economically. However, grading these answers is a time-consuming task for university assistants: Each answer must be checked and assessed individually.

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6 w

Light reshapes ferroelectric thin films for wireless sensors and micro-devices

Light reshapes ferroelectric thin films for wireless sensors and micro-devices

The potential of using low-energy light to shape ferroelectric thin films for micro devices is advancing with an international team of researchers most recently reporting success with "photostriction."

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6 w

Permafrost study finds abrupt thaw accelerates soil phosphorus cycling, offsetting carbon release

Permafrost study finds abrupt thaw accelerates soil phosphorus cycling, offsetting carbon release

Permafrost thaw can stimulate the release of soil carbon, triggering a positive carbon-climate feedback that may be mediated by changes in soil phosphorus (P) availability.

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6 w

Electromagnetic device identifies cells by seeing how high they levitate

Electromagnetic device identifies cells by seeing how high they levitate

It looks like a magic trick: Cells at the bottom of a liquid medium begin levitating, then hovering at a particular height. With no physical contact, an invisible force directs certain cells to float up or down in unison, like mini-submarines.

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6 w

Controlled atomic defects in nickelate films narrow down explanations of superconductivity emergence

Controlled atomic defects in nickelate films narrow down explanations of superconductivity emergence

An international team led by researchers at MPI-CPfS used irradiation with extremely high-energy electrons to controllably introduce atomic defects in superconducting nickelate thin films. Their systematic investigation recently published in Physical Review Letters helps to narrow down the possible answers to fundamental questions of how superconductivity emerges in these materials.

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