Ultraviolet spectra of 29 massive O-type stars in six nearby dwarf galaxies show winds weakening as metals thin out, and hint at a sharper drop in the most metal-poor, with consequences for how astronomers read Webb’s earliest galaxies.
Six children with developmental delay or autism carry the same rare change in a signaling gene. Expressed in fruit flies, the human variant switched on cell signaling without its usual trigger and disrupted neural development.
Computer models of head-on collisions between icy moons thickened one large moon’s buried ocean for about two billion years but cost smaller moons an early one. Saturn’s Rhea, a cratered test case, was not simulated.
Stanford researchers traced two separate progenitor cells in mouse embryos, one wiring up the thinking brain and the other the life support system of breathing and heartbeat, explaining why hindbrain neurons have been nearly impossible to grow in a lab.
Mouse experiments testing rapamycin, acarbose and calorie restriction turned up twelve shared molecular changes marking a slow-aging body, potentially letting researchers screen new anti-aging drugs in months rather than years.
Off Australia’s Gold Coast, a female humpback spent hours beside a newborn that never drew breath, repeatedly nudging it but never lifting the body toward the surface.
College students who prepare and drink from a jug of mixed liquor, sold online as a party staple, log alcohol totals far beyond an ordinary night out, and most say the risks will not stop them.
Asked without answer choices, a third of U.S. adults cannot name the executive, legislative, and judicial branches, the 2026 Annenberg Constitution Day Civics Survey finds. Only freedom of speech is named by more than half. Knowledge of constitutional structure runs stronger than knowledge of rights.
Nine nearby Seyfert galaxies show a repeating pattern: star forming rings, black hole radiation cones, and shock heated gas positioned at right angles between them, hinting an active black hole might help build stars as well as stop them.
Blood pressure, not brain scans, best predicted which patients cleared a key Alzheimer’s biomarker fastest after starting lecanemab, a Korea University study of 153 patients found, months before cognitive scores showed any difference.
Three chasing satellites outperformed a much larger fleet once researchers taught them to predict where an evasive satellite would move next, cutting the numbers needed for a reliable capture in simulation.
A Chalmers and Tianjin physics team compressed years of incremental quantum-state tuning into one carefully calculated pulse, speeding up a key bottleneck in fault-tolerant quantum computing roughly 1,000 times over, at least in simulation.