Scientists

New data indicates the current El Niño is the strongest ever recorded, driving a major shift in global weather patterns. The development is expected to bring hotter temperatures, droughts in some regions and heavy rainfall in others, with scientists warning of widespread consequences for agriculture, water supplies and extreme weather events across the globe in the months ahead.

Scientists are developing new ways to control mosquitoes, the animal that kills more people than any other on Earth. As the climate warms, mosquito seasons are growing longer, giving the insects more time to spread dangerous diseases such as malaria and dengue. Reports highlight how extended warm periods are expanding the threat to new regions and prompting research into novel control methods.

Anthropic is facing questions over whether its A.I. system independently produced a genuine scientific discovery. The claim, examined in a New York Times report, has prompted debate among scientists and A.I. watchers about how much credit the system deserves and whether the finding counts as discovery or as an assist to human researchers. Doubts and defenses are circulating in equal measure.

Scientists and US media are raising alarms about a slow-moving, planetary-scale Kelvin wave in the Pacific making its way toward the California coast. The ocean phenomenon could raise sea levels by up to a foot as El Niño conditions keep warm water trapped along the coastline. Observers warn the combined effect could worsen coastal erosion and flooding risks for communities already exposed to rising seas and winter storms.

A new report says global temperatures have reached record highs as the El Niño climate pattern strengthens in the Pacific. El Niño, which warms ocean surface waters and alters weather worldwide, is adding to the underlying warming trend driven by greenhouse gas emissions. Scientists warn the combination could push average temperatures to new extremes in the coming months, with implications for heatwaves, droughts and storms across many regions.

NASA's Perseverance rover has uncovered evidence that Jezero Crater on Mars had a more complex history than previously thought, beyond simply being an ancient lake. The findings, reported by Mashable, suggest the crater experienced additional geological and environmental changes after the lake era, refining scientists' understanding of Mars' past habitability and water history.

Pope Leo has publicly dismissed suggestions that worries about the risks of artificial intelligence are exaggerated, saying such concerns are not 'fake news'. The remarks add the Vatican's moral weight to the global debate over AI safety, reinforcing calls from scientists and regulators for serious attention to the technology's potential harms and for safeguards in its development.

Scientists report that as the Pacific Ocean warms, its water 'ages' are behaving counterintuitively: younger water is getting older while older water is getting younger. The finding points to shifting circulation and mixing patterns in the world's largest ocean, with implications for how heat and carbon are stored and moved. Researchers say the trend adds to concerns about how warming is altering ocean systems.

The Trump administration is retreating from a proposed executive order that would have given the White House greater control over National Institutes of Health grant decisions. Reporting by Semafor says the plan, which would have tightened political oversight of NIH research funding, is now considered 'dead' after significant pushback from scientists, universities and lawmakers. The retreat comes amid ongoing concerns over federal science funding policy.

Ultra-processed foods are at the center of an ongoing battle over nutrition policy and public health guidance. Debate continues over how strongly these products should be regulated or warned against, with scientists, food companies and policymakers weighing the evidence on their health effects. The discussion remains active as health authorities consider how to address processed food consumption.

New reporting from researchers, including work covered by the Natural History Museum and Phys.org, suggests shifting climate conditions could change the risks humans face from deadly rodent-borne diseases. Changes in temperature and rainfall may alter rodent habitats and populations, potentially bringing infected animals into closer contact with people and expanding where diseases like hantavirus and Lassa fever pose a threat.

China has introduced 15-year research grants aimed at attracting the world's brightest young scientists, according to the South China Morning Post. The long-term funding scheme signals an effort to draw top international research talent to Chinese institutions and strengthen the country's standing in global science and innovation.

A Chinese deep-ocean drilling vessel has returned to port carrying core samples collected from the South China Sea, which state media and scientists have described as scientifically precious. The specimens are expected to aid research into the seabed's geology and the region's resource potential, at a time when the South China Sea remains a focal point of both scientific work and territorial disputes involving China and its neighbours.

Anthropic is facing scrutiny over claims that its AI systems achieved a significant breakthrough in biology. CNET asked independent scientists to assess the claim, and researchers are now debating how real and how meaningful the reported advance actually is. The discussion highlights growing caution about AI companies' big scientific promises and the difficulty of verifying such claims from outside.

Roughly 85% of the matter in the universe has never been directly detected, as it does not interact with standard scientific instruments. UCLA astrophysicist Alvine Kamaha and the LUX-ZEPLIN collaboration are working to change that, operating a detector nearly 1.6 kilometres underground in South Dakota to catch rare particle interactions from dark matter.

Researchers with the Max Planck Society and partners are tracking how the war in Ukraine has affected Ukrainian academics, documenting displacement, disrupted careers and the breakdown of free scholarly mobility during armed conflict. The work highlights how scientists' international movement and collaboration collapse under war, raising questions about how the global research community can support scholars in conflict zones.

New research reported by The Guardian shows Earth microbes can survive in laboratory conditions replicating the ocean beneath the ice of Enceladus, Saturn's icy moon. The findings strengthen the case that the moon's subsurface sea could be habitable, fuelling discussion among scientists and space enthusiasts about the search for life beyond Earth and future missions to Enceladus.

A vast, slow-moving kelvin wave — an ocean phenomenon tied to the El Niño–Southern Oscillation — is reported to be heading toward the California coast, raising alarm among scientists and officials about its potential impact on weather patterns along the US West Coast. Comment is focused on what the wave could mean for extreme weather and coastal conditions in the region.