Science & Tech

China’s R&D Spending Matches U.S. on PPP Measure, But Gaps Remain in Basic Science

OECD data show China matched the U.S. in total R&D spending on a PPP basis in 2024, yet gaps remain in basic research and research integrity.

#china, #science, #research, #rnd, #innovation

Preprint: Frontier LLMs Can Propose High‑Risk Single‑Site Protein Mutations; Tool Access Raises Risk

An Oct. 9 arXiv preprint finds leading LLMs can propose high‑risk single‑site protein mutations in a benchmark, and tools raise that risk.

#ai, #biosecurity, #mutations, #arxiv

Thorium‑229 Nuclear Clocks Demonstrated in Vienna and Beijing; Vienna Shows First Self‑Stabilizing Prototype

Teams in Vienna and Beijing report operational thorium‑229 nuclear clocks; Vienna's device is the first self‑stabilizing prototype, running >24 hours.

#nuclearclock, #thorium229, #metrology, #precision

Webb Pins Most Distant Localized Fast Radio Burst to Tiny Star‑Forming Dwarf Galaxy

James Webb identified the host and redshift (z=2.148) of FRB 20240304B — the most distant localized FRB — linking it to a tiny, star-forming dwarf galaxy.

#frb, #jameswebb, #astronomy, #magnetars

White House packages $6 billion-plus science agenda around AI, virtual biology and space reactors

White House bundled $6B+ in federal, private and philanthropic commitments around AI-for-science — virtual biology, quantum computing and space reactors.

#ai, #virtualbiology, #quantum, #space, #government

Two Independent Teams Demonstrate Operational Thorium-229 Nuclear Clocks

Two independent teams report operational thorium-229 nuclear clocks, locking lasers to a nuclear transition and advancing compact, reproducible nuclear timekeeping.

#nuclearclock, #thorium229, #metrology, #precision

Francis Halzen Wins 2026 Nobel Prize in Physics for IceCube and Neutrino Astronomy

Francis Halzen won the 2026 Nobel Prize in Physics for pioneering the IceCube Neutrino Observatory and establishing neutrino astronomy.

#nobelprize, #neutrinos, #astrophysics, #icecube

Nobel Prize in Physiology or Medicine 2026 Awarded for Optogenetics Breakthroughs

The 2026 Nobel honors Karl Deisseroth, Peter Hegemann and Georg Nagel for discoveries that enabled optogenetics — using light to control neurons.

#neuroscience, #nobelprize, #optogenetics

UCLA-Affiliated Paper Says AI Agent Solved 10 Research Math Problems — But Proofs Were Accepted Only by an LLM Verifier

UCLA-affiliated arXiv paper claims AI agent solved 10 research math problems, but results were accepted by an LLM verifier, not independently or by proof assistants.

#ai, #mathematics, #arxiv, #theorem-proving

Preprint: Closed-loop AI system discovers broadly neutralizing antibodies that protected mice from H1N1

Chinese preprint reports 'ImmuneAgent,' a closed-loop AI‑lab system that found broadly neutralizing antibodies from unsorted human B cells; some protected mice. Not peer‑reviewed.

#ai, #antibodies, #influenza, #preprint

Study finds eight ultramassive (>10 billion M⊙) black holes in brightest cluster galaxies

Accepted ApJ paper reports eight new direct detections of ultramassive black holes (>10 billion M⊙) in brightest cluster galaxies; core size may predict mass better than velocity dispersion.

#astronomy, #blackholes, #galaxies, #astrophysics

First recorded olive ridley sea-turtle nests found on U.S. West Coast; about 200 eggs moved to Long Beach

Two olive ridley turtles nested on Orange County beaches in mid-September — the first recorded West Coast nesting; about 200 eggs were moved to Long Beach.

#seaturtle, #wildlife, #california, #climate

Candidate tidal disruption event spotted in quasar 700 million years after Big Bang

Astronomers report a candidate tidal disruption event in GNz7q, a dusty quasar at z=7.19, reconstructed from Hubble, Spitzer and JWST — a rare early‑universe glimpse.

#tidaldisruption, #blackhole, #quasar, #jwst, #astrophysics

Study identifies backup pathway that lets cells make cysteine without major disulfide reductases

Researchers report a PLP-dependent cystine C–S bond cleavage in mouse livers that supplies cysteine even when main disulfide reductases are absent.

#cellbiology, #cysteine, #metabolism, #cancer

Preprint: Reinforcement learning yields improvements to 15 longstanding kissing-number and spherical-code bounds

Peking University preprint says reinforcement-learning system PackingStar improves 15 kissing-number and spherical-code lower bounds; some cases have exact certificates.

#mathematics, #ai, #reinforcement-learning, #kissing-numbers