Sam's News — science — 2026-08-12¶
Science¶
8 Evidence Suggests Life on Earth May Have Originated Twice¶
Scientists at Heinrich Heine University Düsseldorf found evidence that free-living cells may have originated independently twice on Earth approximately 4 billion years ago, with bacteria and archaea making separate transitions from vent-dependent chemistry to free-living existence. The last universal common ancestor possessed enzymes for only half of the necessary metabolic reactions; the other half were catalyzed by environmental metals.
- Evidence suggests bacteria and archaea originated independently ~4 billion years ago
- Study examined 420 chemical reactions in metabolic network
- LUCA possessed enzymes for only ~50% of metabolic reactions; metals catalyzed the rest
- Enzymes between bacteria and archaea lack same conservation as genetic code
Sources: ScienceDaily AI Web Searched
7 Zhang-Rice singlet directly visualized in cuprate superconductor¶
Researchers achieved direct visualization of the long-sought Zhang-Rice singlet state in cuprate superconductors, advancing understanding of high-temperature superconductivity mechanisms.
Sources: Phys.org RSS
Health¶
7.5 Researchers simplify production of targeted cancer therapies¶
University of Wisconsin–Madison researchers developed a simpler manufacturing process for targeted cancer therapies. The advance aims to improve consistency and enable new treatments as part of broader progress in drug design and engineering for cancer care.
- Simplified manufacturing process for targeted cancer therapies
- Improves consistency in production
- Enables new cancer treatments
Sources: Phys.org AI Web Searched, ScienceDaily AI Web Searched
7 Ozempic-like drugs may reduce addiction cravings by targeting brain's 'craving center'¶
GLP-1 drugs like Ozempic and Wegovy, originally developed for diabetes and weight loss, appear to reduce cravings for alcohol and addictive substances by acting on the lateral septum, a brain region connecting memory and reward. Human studies confirm reduced alcohol consumption; animal studies show reduced use of cocaine, amphetamines, opiates, and nicotine.
- GLP-1 drugs reduce cravings for alcohol, cocaine, amphetamines, opiates, and nicotine
- Mechanism operates through lateral septum, a brain region densely packed with GLP-1 receptors
- Lateral septum acts as neural control point between thinking about rewards and pursuing them
- Could open new therapeutic approaches to addiction treatment
Sources: ScienceDaily AI Web Searched, ScienceDaily — Health RSS, ScienceDaily — Nutrition RSS
Biotechnology¶
7.5 Microbes convert CO₂ into food-grade protein and vitamin B9 commercially¶
Researchers developed microbial processes that convert carbon dioxide, hydrogen, and oxygen into food-grade protein and vitamin B9 at commercially viable scales. The technology bypasses traditional agriculture and livestock farming to address projected global protein demand of 1,250 million tonnes by 2050.
- Converts CO₂, hydrogen, oxygen into edible protein and vitamin B9
- Commercially viable scale production
- Projected global protein need: 1,250 million tonnes by 2050
- Bypasses traditional agriculture and livestock
Sources: Phys.org AI Web Searched
Space¶
7 Three supermassive black holes discovered in single galaxy J0148-4214¶
An international team led by the Max Planck Institute discovered three actively accreting supermassive black holes in galaxy J0148-4214, located 12.5 billion light years away. This is the first confirmed detection of multiple supermassive black holes in a single galaxy, suggesting efficient black hole mergers in the early universe.
- First confirmed detection of three supermassive black holes in one galaxy
- Black hole masses range from millions to ~80 million solar masses
- Two central black holes separated by ~620 light years; third ~5,500 light years away
- Galaxy J0148-4214 appears as it was 1.2 billion years after the Big Bang
- Discovery made using James Webb Space Telescope in December 2024
- Findings suggest black hole mergers contributed to rapid growth in early universe
Sources: Max Planck Society AI Web Searched, New Scientist AI Web Searched, Phys.org RSS
7 JWST discovers earliest 'black hole star' at cosmic dawn, may solve 'little red dots' mystery¶
The James Webb Space Telescope has discovered a rapidly growing black hole surrounded by dense gas—a 'black hole star'—in the early universe, representing the farthest such object identified to date. The discovery may explain the mystery of 'little red dots,' puzzling compact objects observed in early-universe JWST data.
- First 'black hole star' identified at cosmic dawn
- May solve 'little red dots' mystery from JWST observations
- Object represents farthest such discovery to date
Sources: Space.com AI Web Searched, Phys.org RSS
7 Starlink Satellites Repurposed to Map Upper Atmosphere Density¶
Researchers at Kyoto University used orbital data from approximately 1,200 Starlink satellites to create the first two-dimensional snapshot of thermospheric density at 500 kilometers altitude using tomographic analysis. The results show strong consistency with European Space Agency SWARM satellite observations and could help improve satellite tracking and collision-risk reduction.
- Data from ~1,200 Starlink satellites used for analysis
- First two-dimensional thermospheric density map at ~500 km altitude
- First tomographic analysis of upper atmosphere
- Density patterns consistent with ESA SWARM satellite observations
Sources: ScienceDaily AI Web Searched
7 Radiation-shielding vest tested on Artemis I could protect astronauts from solar storms¶
A radiation protection vest tested during NASA lunar missions could significantly reduce astronaut exposure to dangerous solar particle events.
- AstroRad reduces radiation exposure up to 60% during solar storms
- 26-kilogram vest protects lungs, stomach, bone marrow, breasts, ovaries
- Tested on Artemis I (2022) uncrewed mission around the moon
- May be included on future moon missions but not on Artemis II (April 2026)
Sources: Associated Press via ClickOrlando AI Web Searched, Science News AI Web Searched, Phys.org RSS, bozemandailychronicle.com Web Search, Space.com RSS, bozemandailychronicle.com RSS
Climate & Health¶
7 Drought reshapes spread of infectious diseases globally, spurring cholera and West Nile virus surges¶
Prolonged droughts across the American West and Europe are altering disease transmission patterns, with significant increases in cholera and West Nile virus documented. Rising temperatures expand vector ranges, while droughts force unsafe water use and displace populations, creating conditions for disease spread.
- World currently in seventh cholera pandemic
- Of 375 infectious diseases affecting humans, 218 (58%) aggravated by climatic hazards including droughts
- Droughts expand mosquito distribution ranges, enabling West Nile virus to establish north of the Alps and across South Asia, South America, Europe