Scientists

New data indicates the current El Niño is the strongest ever measured, driving a major shift in global weather patterns. Scientists say the event is altering rainfall and temperature patterns across continents, with potential impacts on droughts, floods and harvests worldwide. The finding is drawing wide attention as meteorologists track how the intensified pattern will affect weather in the months ahead.

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.

Scientists are developing new ways to control mosquitoes as warming temperatures lengthen mosquito seasons and expand the range of dangerous diseases. Mosquitoes kill more people than any other animal on earth, and researchers warn that longer warm periods give the insects more time to spread illnesses such as malaria and dengue, prompting renewed focus on innovative control strategies.

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.

Scientists in Germany are preparing to copy and store vast troves of American climate data, fearing the Trump administration could alter, restrict, or remove federal climate records. The effort has been likened to building an ark, preserving scientific information outside the United States in case it becomes unavailable at home, and has drawn attention as researchers weigh risks to publicly funded datasets.

A New York Times piece examines how scientists can influence public opinion on the risks of artificial intelligence, reportedly through protests and public engagement. It suggests researchers are becoming active voices in the debate over AI safety, rather than leaving the conversation to companies and regulators.

Negotiations on the EU's pesticides reduction law have reached a deadlock after European scientists called for a pause. EU officials face pressure to suspend talks on the Food and Feed legislation, with pushback coming both from the scientific community and from countries outside the bloc. The standoff leaves the fate of the bill uncertain.

Scientists have captured a subduction zone off Vancouver Island in the process of tearing itself apart, suggesting these massive tectonic systems may die piece by piece rather than all at once. The finding offers new insight into how subduction zones end over geological time, with implications for understanding seismic hazards in the Pacific Northwest, where the Cascadia zone poses earthquake and tsunami risks.

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.

NASA's Perseverance rover has uncovered evidence that Jezero Crater on Mars was more complex than previously thought, indicating it was not simply an ancient lake. The finding suggests the crater experienced a richer and more varied geological history, with implications for understanding Mars' past water activity and its potential to have once supported life.

PBS NewsHour reports on scientists developing new ways to control mosquito populations as rising global temperatures expand the habitats where the insects and the diseases they carry can spread. The segment examines research approaches to targeting mosquitoes as warming climate conditions push the public health threat into previously unaffected regions.

Scientists and weather watchers are tracking a vast, slow-moving Kelvin wave—a planetary-scale ocean or atmospheric pattern—that is heading toward California. The development is drawing attention because such waves can influence coastal conditions and extreme weather, and concern is mounting over what impact it could bring to the US West Coast.

President Trump pledged to reveal the truth about unidentified flying objects, drawing attention from scientists who hoped for the release of government data on aerial phenomena. Researchers say that despite the promises, concrete disclosures and verifiable evidence have yet to materialise, leaving the scientific community frustrated and still waiting for answers about unexplained sightings.

Roche has outlined plans to move towards autonomous laboratories powered by artificial intelligence, where research experiments could be designed, run and analysed with minimal human involvement. The Swiss pharmaceutical group's roadmap points to AI systems handling much of the drug discovery workflow. Details of timelines and investment were limited in the initial reporting, leaving analysts awaiting specifics.

In an interview, political scientist Norman Finkelstein responded to Harvard's antisemitism inquiry, which found that Israeli and Jewish students "don't feel wanted at Harvard." The university said it must correct for antisemitism by embracing everyone, and Finkelstein, while voicing support for inclusivity, went on to take issue with the inquiry's framing, drawing attention and debate online.

Peter Barrett, a leading figure in Antarctic science in New Zealand and internationally, has died. Colleagues describe him as a legend in the field, noting that even in death he left behind a list of tasks and challenges, reflecting his lifelong commitment to Antarctic research and climate issues. Tributes have come from across Aotearoa and the wider scientific community.

Scientists led by UCLA astrophysicist Alvine Kamaha, through the LUX-ZEPLIN collaboration, are searching for dark matter from a detector operating nearly a mile underground in South Dakota. Roughly 85% of all matter in the universe remains undetected by standard instruments, and the experiment tracks rare particle interactions that could reveal it. The effort is drawing attention online among space and physics enthusiasts.

A new study is probing whether artificial intelligence systems could experience pain, one of the hardest questions in debates over machine consciousness. The research feeds into a wider argument among scientists and ethicists about whether large language models have any form of subjective experience, and what that would mean for how such systems should be treated and regulated.

Guardian science writer Linda Geddes reports on the growing threat of wildfires in the UK, where hotter, drier summers are turning green landscapes into tinderboxes. Scientists are working to map, model and predict how fires spread so that outbreaks can be prevented or contained earlier, as Britain confronts a type of risk once seen mainly abroad.

New research indicates Mercury is contracting more quickly than previously estimated. The smallest planet in the solar system has been cooling and shrinking for billions of years, causing its crust to buckle and form cliffs and ridges. The revised findings suggest this process is still active and accelerating relative to earlier models, prompting scientists to rethink how rocky planets cool over time.

Researchers at the University of California, Riverside say one of Saturn's moons may hold clues about whether life exists beyond Earth. The work points to conditions on the moon that scientists consider promising in the search for extraterrestrial life, adding to ongoing interest in icy moons with subsurface oceans as targets for future exploration.