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A nationwide public sector strike is planned for Tuesday, September 29, in France, involving teachers, healthcare workers, firefighters, and public transport staff. In Paris, a demonstration is set to march from Place de la République to Place de la Nation via Bastille. Travelers should expect disruptions, with RATP services likely affected, and check updated schedules before setting out.

Leading AI researchers are urging governments to urgently regulate self-improving artificial intelligence systems, warning that software capable of enhancing its own capabilities could pose risks that current oversight frameworks cannot address. The appeal, reported as an exclusive by the Wall Street Journal, comes as concerns grow over how quickly advanced AI models are evolving beyond existing safety measures.

Google has announced Project Suncatcher, an initiative to place machine learning infrastructure in space, according to a post on its research blog. The idea is to use solar-powered satellites to run AI compute, taking advantage of continuous sunlight in orbit. Early reactions are focused on the engineering challenges and the ambition of moving data centers off Earth.

Researchers reviewing the evidence have concluded there is no solid proof that daylight saving time affects mental health. The finding challenges widely reported claims that clock changes trigger spikes in depression, anxiety or other conditions, and is likely to feed into ongoing debates in several countries about whether to abolish seasonal clock changes altogether.

Stephen Richer, the former Republican elections official from Maricopa County, Arizona, appeared before a US House hearing examining alleged noncitizen voting in New Jersey. Richer, who previously defended the integrity of the 2020 election against his own party's claims, testified on election administration and voter fraud allegations. The hearing feeds into an ongoing national debate over voting rules and election integrity ahead of future elections.

American ranchers are warning that a tightened immigration crackdown could drive beef prices even higher, on top of already elevated costs at the grocery store. The industry relies heavily on immigrant labor for processing and herding, and producers say labor shortages would shrink supply and raise costs. The warning adds to consumer concerns about food inflation in the United States.

Researchers led by Dr. Jona Kayser at MPZPM report that physical processes in dense cell populations play a decisive role in determining the optimal timing of treatment cycles. The finding addresses treatment resistance, described as one of the key challenges in cancer and antibiotic therapy, and suggests treatment scheduling could be improved by accounting for how densely packed cells interact physically rather than relying on biological factors alone.

The Yuelu Conference 2026 opened in Changsha, Hunan Province, China, on September 23–24, drawing artificial intelligence companies, robotics developers, researchers and investors. The event featured an opening ceremony and ten themed "AI+" forums, positioning Changsha as a growing hub for China's AI and robotics sectors and giving firms a venue to showcase technology and strike partnerships.

Researchers in Ukraine are being tracked through the war and armed conflict, documenting how scientists have been displaced, killed, or forced to abandon their work since Russia's full-scale invasion. The effort highlights the war's impact on Ukraine's academic community and research infrastructure, drawing attention to the losses suffered by the country's scientific institutions.

Attention is on archery at the Asian Games 2026, with coverage compiling scores, the competition schedule, India's results and a full list of medal winners. The roundup gives fans a single reference for how the archery events unfolded and which nations and athletes came away with medals.

The Max Planck Society has released a study following the situation of researchers in Ukraine during the war and armed conflict, examining how the ideal of free scholarly mobility breaks down under wartime conditions. The publication looks at the constraints facing academics whose movement, collaboration and careers are disrupted by fighting, highlighting what open science systems cannot guarantee in conflict.

Bleacher Report and WWE have agreed to a highlights partnership, according to Sports Business Journal. The deal will bring WWE wrestling highlight content to Bleacher Report's platforms. Details on the length, value, or exact distribution plans of the agreement have not been disclosed, and reaction from fans and industry watchers is still emerging.

Researchers have concluded that there is no solid evidence linking daylight saving time to effects on mental health, the Guardian reports. The finding pushes back against widespread claims that the clock changes trigger depression, anxiety or other psychiatric problems, and may inform ongoing debates in several countries about whether to abolish seasonal time changes altogether.

Archaeologists in Chile have unearthed 13,000-year-old bones of a gomphothere, an extinct long-tusked relative of elephants, bearing clear cut marks from butchering. The find adds to evidence that humans were present in South America far earlier than the traditional Clovis timeline, supporting theories of an earlier peopling of the Americas. Researchers say the discovery strengthens the case for pre-Clovis settlement across the continent.

Boris Cherny, an engineer at Anthropic, has argued that general-purpose AI models are superior to specialized ones built for narrow tasks. He says broad models with strong reasoning can outperform domain-specific systems, a view that touches a long-running debate among AI developers over whether to build one capable model or many tailored ones.

Boris Cherny, an engineer at AI company Anthropic, is advising developers to build on general-purpose AI models rather than investing in fine-tuning. His argument is that frontier models improve so quickly that customized versions trained on specific data risk being outpaced. The advice is drawing attention from developers weighing whether to fine-tune existing models or rely on prompt engineering and general capabilities.

Archaeologists in Chile have uncovered 13,000-year-old butchered animal bones, offering new evidence that humans were present in South America far earlier than once believed. The cut marks on the remains suggest early peoples hunted or scavenged there, adding to a growing body of finds that challenge the traditional timeline of when the first Americans arrived and how quickly they spread across the continent.

Senator Deb Fischer of Nebraska will deliver the opening keynote remarks at an event marking 150 years of American telecommunications, hosted by Broadband Breakfast. Her remarks will frame discussions on a century and a half of US telecom development and the innovation and competition shaping the industry's future.

Researchers at Stony Brook University have published a blueprint for artificial intelligence systems capable of improving themselves. According to the university's announcement, the work outlines a framework for AI that can iteratively enhance its own performance. Details on methods, results, and timeline have not been widely reported, and reaction from the broader AI community remains limited so far.

A University of Iowa researcher has received funding to improve how plasma waves in the solar wind are detected. The grant, reported by Iowa Now, supports work that could sharpen scientists' understanding of space weather and the stream of charged particles flowing from the Sun. Details of the funding amount and researcher's name were not given.