Earth & Life
L.A. Zoo releases 653 captive-bred frogs into California streams
A breakthrough in amphibian rescue: captive-bred frogs are returning to California streams in numbers—and at sizes—never before possible.
Universe
Hubble detects star stream stripped from distant galaxy's cluster
Hubble and CFHT imaging reveal a probable globular-cluster stream around UGC 9050-Dw1, demonstrating a new dark-matter probe while leaving substantial model uncertainty.
Universe
New solar model solves silver puzzle that puzzled astronomers for decades
A 3D non-LTE analysis of two difficult ultraviolet silver lines raises the inferred solar abundance by 55 percent and brings it within the uncertainty of primitive meteorites.
Universe
Mystery absorber in Venus's clouds could turn liquid nearly black
A radiative-transfer model converts Venus’s ultraviolet reflectivity into a bulk-liquid absorption coefficient, sharply constraining the strength and abundance of its unknown cloud absorber.
Universe
Mercury's surface has far less silicon dioxide than scientists thought
A new infrared calibration puts Mercury's surface near 37.4% SiO2, but the estimate rests on one observation and awaits BepiColombo's global test.
Universe
Giant collisions may destroy oceans on small icy moons faster than thought
Coupled collision and thermal models find that fragments radiate impact heat quickly, while differentiation can remove the insulating layer that helps small moons sustain oceans.
Universe
AI reconstructed 27 years of blazar observations into continuous high-resolution video
A neural-field reconstruction joined 116 VLBA epochs into a continuous model of 3C 345, mapping apparent superluminal motion while exposing important interpolation limits.
Universe
Venus may have lost a moon to tidal destruction in 30 million years
A new tidal-evolution study finds that an early Venusian moon could first move outward, then reverse as Venus slowed, although its fate depends strongly on the tidal model.
Universe
Planet Nine's massive size wouldn't make it visible from Earth's vast distance
A proposed six-Earth-mass Planet Nine could still be extremely faint because reflected light pays an inverse-square distance penalty both going out and coming back.
Science & Engineering
ESA satellite records its own destruction from a chase plane below
Two decades of precision space science ended not with silence, but with instruments recording their own obsolescence from an airplane below.
Universe
Sun's most violent explosions may be far more powerful than ever thought
The Sun's most violent explosions may be far more powerful than once thought—a discovery that rewrites assumptions about space weather's deadliest extremes.
Earth & Life
Unplanted reef structures outpaced carefully seeded ones in coral growth
Nature's patience outpaced human intervention: untouched reef structures attracted more coral than their carefully planted neighbors.
Universe
Webb and Hubble spot 27 faint Kuiper Belt objects, revealing fewer tiny bodies than expected
A 27-object Webb survey, with Hubble colours for 13 detections, found fewer tiny TNOs than some models predict and surfaces that still resemble those of larger relatives.
Universe
Solar particles reshape understanding of Mercury's magnetosphere
Solar particles are bombarding Mercury's surface in ways that reshape how scientists understand the planet's thin magnetosphere.
Earth & Life
Singapore's otter population doubled in four years after near extinction
A species once hunted to the brink of extinction in Singapore has staged an unlikely comeback, doubling its population in just four years.
Universe
Chariklo's rings are shifting in ways astronomers didn't expect
Webb data indicate Chariklo's dense inner ring grew more opaque while its tenuous outer ring faded, though wavelength-dependent grain behaviour remains an alternative explanation.