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Top science & technology news, August 16, 2026
- Reinforcement Learning for LLM Reasoning: Sparse Policy Selection, Not Capability Learning
Reinforcement learning (RL) is commonly used to improve reasoning in large language models (LLMs). However, recent evidence suggests that RL does not teach new strategies; instead, it redistributes probability mass over solutions the base model already contains. This work explores whether RL merely steers the model toward paths it already knows.
- Nvidia discloses $21B stake in SpaceX at end of second quarter
Nvidia disclosed on Friday that its stake in Elon Musk's SpaceX was worth about $21 billion at the end of the second quarter.
- NIH ends key grant for budding clinical researchers
The National Institutes of Health (NIH) is ending a key grant that has been crucial to supporting young clinical researchers.
- TemporalStore: Open-source Engine for Managing LLM Memory
Open-source engine TemporalStore simplifies managing LLM memory by sending only the important information to the next step.
- Sex-Specific Regional Brain Morphometric Correlates of Neighborhood Socioeconomic Disadvantage in Clinical Neuroimaging
The study investigates sex-specific associations between neighborhood-level socioeconomic disadvantage and brain morphometry derived from clinical MRI.
- Sex Differences in DNA Demethylation Machinery Precede Sex Differences in the Oxytocinergic System in the Postnatal Mouse Brain
Sex differences in brain arise from genetic and hormonal factors, including organizational effects of perinatal testosterone. Epigenetic mechanisms including DNA methylation and demethylation have emerged as critical mediators of brain masculinization; specifically, their regulatory enzymes are upregulated in neonatal mice during the critical period of sexual differentiation, with their inhibition abolishing sex-specific cellular phenotypes.
- Iteratively Curated CRISPR Library Reveals Target-Specific Biological Resistance Landscapes to Protein Degraders
A research team developed an iteratively curated CRISPR library that reveals specific biological resistance landscapes to targeted protein degraders. These findings could aid in the development of new therapeutic compounds.
- Fight Aging! Newsletter, August 17th 2026
Fight Agergship publishes news and commentary relevant to the goal of ending all age-related disease. This weekly newsletter is sent to thousands of interested subscribers.
- TechCrunch Mobility: The shifting flight path of electric air taxis
In this issue of TechCrunch Mobility, two major deals were discussed in the eVTOL sector. These companies are working on developing electric vertical takeoff and landing aircraft (eVTOL).
- Chromosome-level reference genome assembly of the Saimaa ringed seal (Pusa saimensis)
The assembled chromosome-level reference genome for the Saimaa ringed seal contains information about 15 chromosomes, including X and Y sex chromosomes. The assembly was achieved using Oxford Nanopore Technologies and Hi-C scaffolding to achieve telomere-to-telomere assembly on all chromosomes except the Y chromosome.
- CVE-2026-33696: Schema Name to RCE in n8n
In n8n, user-supplied schema names are used as bare object keys without first checking for __proto__, constructor, or prototype. This allows RCE via the Git node.
- Protecting the Rust standard library from accidental breakage
The Rust standard library now uses cargo-semver-checks to prevent accidental changes.
- Anthropic CEO Says AI Backlash is 'Fundamentally a Crisis of Trust'
Anthropic CEO Dario Amodei rejects the idea that he's overly pessimistic about AI and its future. He claims his warnings have fueled backlash against data centers in the US, particularly among investors.
- Wildfire Smoke Now Larger Prenatal Threat Than Human Sources of Air Pollution
Evidence shows that pollution from wildfire smoke is now larger than human sources of air pollution, eclipsing the gains made by reducing emissions of harmful pollutants over the past 50 years.
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- VisionQuest trailer kicks off Disney's D23 fan event
At the first day of D23: The Ultimate Disney Fan Event in Anaheim, California, Marvel Studios released the first trailer for VisionQuest. Additionally, there were teasers for Ahsoka S2; a special sneak peek (for attendees only) for Star Wars: Starfighter; casting news for MCU's X-Men movie; and a trailer for LEGO Star Wars: The Mandalorian coming to Disney+ next month.
- MathCode: Mathematical Coding Agent
MathCode is a terminal AI coding assistant with a built-in math formalization engine. It automatically converts a plain language math problem into a Lean 4 theorem and attempts to prove it using persistent REPL, reusable theorem and axiom libraries, agentic proving, and an Obsidian knowledge graph.
- Anthropic Revenue Jumps to More than $11.5B in Second Quarter
AI company Anthropic reported a revenue of more than $11.5 billion for its latest completed quarter, up from $787 million in the same period last year and $4.73 billion in the first quarter of 2026.
- Sentinel Scan: An authorized LLM red-team audit
Sentinel Scan is a one-time, authorized adversarial audit that runs 15+ real prompt-injection and data-exfiltration attacks against your system. The report will be provided to your engineers within one day.
- Claude: System Prompts
The Claude web interface (claude.ai) and mobile apps use a system prompt to provide up-to-date information, such as the current date, at the start of every conversation. The system prompt also encourages certain behaviors, such as always providing code snippets in Markdown.
