Scientists

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 methods to control mosquitoes, the world's deadliest animal to humans, as warmer temperatures stretch mosquito seasons and expand the reach of diseases like malaria and dengue. PBS News reports that longer warm periods give the insects more time to breed and spread illness, prompting renewed research into control strategies as climate change shifts where the threat lands.

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.

A debate is under way over whether Anthropic's Claude AI genuinely produced an independent scientific discovery. A researcher at the University of Copenhagen said his team had been sharing its research with the model, and that Claude's new finding matched their unpublished work, raising questions about whether the result was truly original or inferred from what the scientists had already shared.

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.

Scientists have developed the most accurate atomic clock ever built, according to a newly published report. The clock advances precision timekeeping, which underpins GPS navigation, telecommunications and tests of fundamental physics. Researchers say such devices lose tiny fractions of a second over billions of years, pushing the limits of measurement science and potentially prompting a redefinition of the second itself.

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.

Physicists report creating a record-breaking Schrödinger's cat state, a quantum superposition in which atoms exist in two states at once, using some of the most unusual atoms in physics. The experiment pushes the known limits of how large an object can be while remaining in a quantum superposition, a milestone for quantum physics research.

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.

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.

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.

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.

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 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.

Researchers report observing how an aggressive brain cancer physically remodels brain tissue as it grows, offering a live view of tumor progression. The findings shed light on how deadly brain tumors invade and distort surrounding structures, which could inform future treatment approaches. The work is drawing attention for its striking visualization of the disease's effects on the brain.

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.

Scientists are working near the mouth of the Mississippi River in Louisiana on what is described as a massive effort to predict the region's future. The research focuses on forecasting environmental changes along the river's delta, an area central to concerns about land loss and coastal resilience. Local coverage highlights the scale and ambition of the scientific undertaking.

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.

A slow-moving, planetary-scale kelvin wave of warm ocean water is heading toward the US West Coast, raising concern in California. Such waves along the equatorial Pacific are tied to the El Niño-Southern Oscillation and can shift weather patterns, potentially bringing heavier rains, coastal impacts and extreme weather to the region as scientists and residents watch its progress.

A New York Times report examines whether Anthropic's artificial intelligence genuinely produced an autonomous scientific discovery, in a case involving biology and enzyme research credited to a scientist named Mestre. The question of what counts as a real AI-driven discovery — versus human-guided work marketed as machine achievement — is drawing scrutiny as labs race to claim scientific firsts for their models.

Researchers report identifying a molecular switch triggered by stress that appears to drive depression, according to a report by Bioengineer.org. The finding could shed light on how chronic stress produces changes in the brain that lead to depressive symptoms, potentially opening new avenues for treatment. Details of the underlying study, including the research team, publication venue and evidence, were not provided in available coverage.

Researchers have identified a new potential treatment target for high blood pressure, a condition affecting over a billion people worldwide and a leading risk factor for heart disease and stroke. The discovery could open the door to new drug development beyond existing blood pressure medications. Details of the findings and their clinical significance remain limited.

A new report suggests scientists may have misinterpreted evidence dating back some two billion years, with potential implications for how Earth's early history is understood. The finding is drawing attention in science media, as re-evaluating such ancient clues could reshape assumptions about the planet's past conditions and evolution.

NASA scientists are mapping vast valleys buried beneath the Greenland ice sheet, revealing dramatic hidden landscapes that were shaped before ice covered the island. The research helps scientists understand how the bedrock terrain influences ice flow and could improve predictions of how the ice sheet will respond to climate change and contribute to global sea-level rise.

New research indicates Earth microbes can survive in conditions mimicking the ocean of Enceladus, Saturn's icy moon. The findings strengthen the case that Enceladus could potentially host life, since its subsurface ocean is a leading target in the search for life beyond Earth. Scientists say the experiment shows known microorganisms are more hardy than assumed under such extreme environments.