College students say they use AI mostly for learning and don't use it to cut corners but think that their peers do, according to the inaugural Dartmouth AI Survey, a new multiyear survey on how AI is shaping students' learning and career readiness.
Quantum researchers are searching for a topological superconductor—a material that, if discovered, would allow major advances in quantum computing by combining two distinct "flavors" of superconductivity.
Varying crop rotations and keeping the soil constantly covered with vegetation help protect crops against droughts and floods, in addition to increasing productivity. This technique was tested in Rio Grande do Sul state, Brazil, by researchers from the Center for Carbon Research in Tropical Agriculture (CCARBON) at the University of São Paulo (USP).
A promising new study suggests that more than half of younger adults with type 2 diabetes could achieve remission in just six months through a combination of a low-calorie diet and structured exercise. Researchers found that 54% of participants under age 45 who followed an intensive diet and exercise program achieved remission, compared with just 4% receiving usual care.
Scientists have created a miniature universe in the laboratory that could help answer one of the biggest mysteries in physics: What is time, and where does it come from? Using 24,000 ultracold atoms, a University of Birmingham researcher built an isolated quantum system that repeatedly expands and contracts, mimicking the Big Bang and a possible Big Crunch. Remarkably, the experiment showed that time could emerge from changes happening inside the system, without relying on an external clock.
Scientists may have solved a 66-million-year-old mystery: how crocodiles survived the asteroid that wiped out the dinosaurs. A sweeping analysis of fossils and ancient climates suggests that their preference for warm environments placed them in tropical refuges that remained habitable even after the catastrophic impact.
A computer scientist has achieved a breakthrough in a nearly 25-year-old problem involving how computers calculate distances across enormous networks. The new algorithm delivers more reliable estimates for closely connected points without sacrificing speed, overcoming a longstanding limitation of earlier methods. Its secret lies in a smarter way of sampling network connections at multiple scales.
A surprising discovery by astronomers using the Hubble Space Telescope is challenging a leading explanation for how the early universe emerged from a dense fog of hydrogen roughly 13 billion years ago. Scientists once believed powerful winds from exploding stars helped radiation escape galaxies and clear that cosmic fog, but new observations reveal that these winds actually block radiation instead.
A startling new study suggests that venomous snakebites are killing far more people worldwide than official statistics indicate, with an estimated 274,000 to 513,000 deaths every year. Researchers found that as many as 7 million people could suffer snake envenoming annually, while more than 800,000 survivors are left with long-term disabilities.
Scientists have uncovered hidden aggressive cancer cells in children whose tumors were previously considered lower risk, revealing why some cases of rhabdomyosarcoma become unexpectedly deadly. The discovery could help doctors identify dangerous tumors earlier and develop personalized treatments that improve survival while reducing unnecessary chemotherapy.
