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Science News Archive April 2026 - Page 23


Page 23 of 55

The edge of the Milky Way's star-forming disc revealed

Astronomers have identified the edge of the Milky Way's star-forming disc for the first time, finding that most star formation happens within 40,000 light-years of the Galactic Center. This discovery uses a new approach combining star ages with galaxy simulations to pinpoint the boundary.

SourceUniversity of Malta·JournalAstronomy and Astrophysics·TypeData/statistical analysis·DateApr 21, 2026

Extreme climate events increase heart disease risk, new study reveals

A new study reveals a strong link between extreme climate events and the incidence of heart disease among middle-aged and older adults in 157 Chinese cities. Exposure to extreme heat, cold, and precipitation increases the risk of cardiovascular disease, with higher BMI-related risks associated with temperature intensity and cold-induce...

SourceElsevier·JournalAmerican Journal of Preventive Medicine·TypeData/statistical analysis·DateApr 21, 2026

Creating a wireless tissue-aware medical device network in the human body

A research group developed an optimized signal transmission system for implantable medical devices, improving accuracy and strength of wireless signals. The approach uses ultra-wideband communication to coordinate multiple implants and reduce signal distortion, enabling more effective healthcare applications.

SourceOsaka Metropolitan University·JournalScientific Reports·TypeComputational simulation/modeling·DateApr 21, 2026

US companies selling lead paint and pigments abroad

A new study reveals that over 90% of lead paints sold in Mexico contain hazardous lead chromate pigments, which dominate the market. The widespread use of these pigments poses serious health consequences for children and workers, with alarming levels of blood lead found in Mexican children.

SourceOK International·JournalAnnals of Work Exposures and Health·TypeExperimental study·DateApr 21, 2026

Alliance study shows new promise against locally advanced lung cancer

A study by the Alliance Foundation Trials shows that combining immunotherapy and chemotherapy before surgery can help more patients with locally advanced non-small cell lung cancer undergo complete cancer resection, improving their long-term health. The treatment also led to high rates of lymph node clearance and successful surgical re...

SourceAlliance for Clinical Trials in Oncology·JournalLung Cancer·TypeExperimental study·DateApr 20, 2026

The moment scents disappear, the clock of dementia begins ticking: DGIST identifies the cause of olfactory impairment for the first time

A study by DGIST researchers reveals that the olfactory system is the first to be damaged in Alzheimer's disease due to distinct immune responses in different brain regions. The findings provide new insights into the early warning signs of dementia and potential diagnostic markers.

“Seeing clearly even in the fog”: DGIST develops next-generation infrared image sensor for autonomous driving

A research team at DGIST has developed a next-generation near-infrared image sensor technology combining quantum dots with two-dimensional semiconductors. The new sensor exhibits high responsivity and detectivity, enabling rapid detection of weak infrared signals in fog or smoke.

Bioinspired auxetic metastructures enable biomechanically adaptive, machine learning‑enhanced self‑powered sensing with ultrahigh efficiency

Researchers developed bioinspired auxetic triboelectric nanogenerators that resolve mechanical mismatch challenges in flexible sensors. The devices achieve high energy conversion efficiencies and conform to biological tissues with minimal energy loss.

SourceShanghai Jiao Tong University Journal Center·JournalNano-Micro Letters·TypeNews article·DateApr 20, 2026

Stretching and squeezing diamond opens new path for ultra-precise quantum sensors

Researchers discovered a way to tune the quantum properties of tiny defects in diamond by stretching or compressing the crystal, enabling next-generation sensors with unprecedented precision. The silicon-vacancy center, a promising building block for quantum devices, responds predictably to mechanical deformation.

SourceSingapore University of Technology and Design·JournalApplied Physics Letters·DateApr 20, 2026

Simple ocean-based model forecasts El Niño skillfully, points to a strong event ahead

Researchers have developed a simple yet effective ocean-based model that can predict El Niño and La Niña 15 months in advance using only surface temperature and height observations. The model leverages two core climate memories, Wyrtki memory and Hasselmann memory, to achieve forecast skill comparable to more complex models.

SourceUniversity of Hawaii at Manoa·JournalGeophysical Research Letters·TypeComputational simulation/modeling·DateApr 20, 2026

Average age of young fatal stab victims now 14, national data indicate

In an analysis of child and teen fatalities from 2019 to 2024, the average age of young fatal stab victims is now 14, with Black ethnicity individuals being 13 times more likely to be fatally stabbed. Children living in the most deprived areas are 7 times more likely to die of their wounds than those in affluent areas.

SourceBMJ Group·JournalEmergency Medicine Journal·TypeData/statistical analysis·DateApr 20, 2026

Study uncovers hidden factor shaping dementia caregiving stress

A study from Rice University reveals that caregivers' relationships play a crucial role in their mental and physical health. Caregivers who are more self-reliant or emotionally distant experience worse health outcomes, but those with higher relationship satisfaction have stronger buffering effects.

SourceRice University·JournalBiopsychosocial Science and Medicine·TypeExperimental study·DateApr 20, 2026

Novel strategies for coral restoration

Researchers at University of Miami developed a novel strategy to enhance survival rates of lab-grown baby corals by modifying the alkalinity of growth tiles. By increasing sodium carbonate levels, they observed a fourfold improvement in early-stage coral survival, paving the way for potential coral restoration efforts.

SourceUniversity of Miami·JournalCommunications Earth & Environment·TypeExperimental study·DateApr 20, 2026

Mini brain-like structures grown in lab may help scientists treat, diagnose and stage Alzheimer’s disease

Researchers from Johns Hopkins Medicine have developed mini brain-like structures grown in the lab that could be used to evaluate how patients with Alzheimer's disease respond to certain drugs. The study found that tiny particles secreted by these brain tissues may contain cellular information that could help scientists find new biomar...

SourceJohns Hopkins Medicine·JournalAlzheimer’s & Dementia·DateApr 20, 2026

Are your staffing metrics enough? New research on patient falls says maybe not

A new study from the University of Pennsylvania School of Nursing's Center for Health Outcomes and Policy Research found that nurses' assessments of their staffing adequacy is a more accurate predictor of patient safety on medical surgical units than traditional administrative data. In contrast, objective metrics like RNHPPD proved to ...

Fondazione Telethon’S Genomic Program end the diagnostic odissey for hundreds of children

The program achieved a definitive genetic diagnosis in nearly half of enrolled children, identifying pathogenic variants across 330 genes. Families received timely diagnoses, allowing accurate genetic counseling and informed reproductive choices, while guiding clinical management and opening access to targeted therapies.

SourceFondazione Telethon·JournalGenetics in Medicine Open·TypeExperimental study·DateApr 20, 2026

Massive Atlantic sargassum blooms traced to west Africa

Scientists have traced the origin of massive Atlantic Sargassum blooms to coastal waters near the Gulf of Guinea in West Africa. The study uses physics-based modeling and probabilistic analysis to show that blooms can be tracked back up to two years before they are detected by satellites.

SourceUniversity of Miami Rosenstiel School of Marine, Atmospheric, and Earth Science·JournalPNAS Nexus·TypeComputational simulation/modeling·DateApr 20, 2026

Implanted nerve stimulation for obstructive sleep apnea found to be safe and effective in new trial

A new trial found that proximal hypoglossal nerve stimulation (pHGNS) significantly reduced breathing interruptions during sleep and improved daytime sleepiness without adverse events. The therapy, an FDA-approved alternative to nasal positive airway pressure, was found to be safe and effective in patients with moderate-to-severe obstr...

SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·TypeNews article·DateApr 20, 2026

The physics of brain development: How cells pull together to form the neural tube

Georgia Tech researchers used computer models to reveal how cells physically pull the neural tube closed during early development. The study found that forces generated by cells create a 'purse string' mechanism made of actin, which tightens and draws the tube closed through a synchronized pattern of cell movement.

SourceGeorgia Institute of Technology·JournalCurrent Biology·TypeComputational simulation/modeling·DateApr 20, 2026