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Thailand unveils Uragasaurus kalasinensis, a cricket-pitch-length dinosaur
6 minutes ago•Source: BBC
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16.055 min•17 minutes ago
Drought on Flores Island Likely Ended the Real-Life Hobbits’ Refuge
Researchers reconstructed ancient rainfall on Flores Island using a stalagmite from Liang Luar cave, revealing three climate phases and a final prolonged dry spell around 61,000–47,000 years ago that coincides with the disappearance of Homo floresiensis and their pygmy-elephant prey Stegodon florensis insularis, suggesting dwindling resources forced the hobbits to abandon Liang Bua and potentially encounter modern humans who arrived on the island later.
4.415 min•39 minutes ago
From Planes to Spacetime: Sabrina Pasterski’s Quantum Gravity Quest
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NASA's fridge-sized quantum lab on the ISS expands ultracold-atom research in orbit
Live Science•50 minutes ago
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Neutron-Star Merger Brings Fresh Data to the Universe's Expansion Rate
Universe Today•1 hour ago
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Starless Rogue-Moon Orbits Could Sustain Long-Lived Subsurface Oceans
A 2025 arXiv modelling study suggests moons bound to planets ejected by supernovae could remain in interstellar space and heat internal oceans via tidal flexing, potentially keeping subsurface oceans for billions of years without sunlight. In simulations, 12–15% of cases yielded heating within the Europa/Enceladus range; surfaces would stay frozen and oceans would be buried, but the internal heat could sustain liquid water. The work is theoretical and depends on model inputs, and no confirmed rogue-planet moons have been observed yet; still, it widens habitable-setting thinking beyond star warmth.
Tiny Triassic Jaw Reframes Early Lizards' Family Tree
A micro-sized Late Triassic jaw fossil of Cargninia enigmatica from southern Brazil preserves 12 teeth (likely up to 18) and, via micro-CT, reveals trigeminal nerve patterns resembling living lepidosaurs. Large phylogenetic analyses consistently place Cargninia as a non-lepidosaur lepidosauromorph, suggesting it predates true lepidosaurs and helps illuminate the early evolution of lizards and their relatives; the find dates to about 225 million years ago and was described online July 4, 2026 in The Anatomical Record.
Nearby ravenous black hole mirrors early-universe feeding frenzy
Astronomers observe a supermassive black hole at the center of SDSS J110546.07+145202.4 (about 1.8 billion light-years away) in a rapid accretion phase, launching jets and causing a roughly 20-fold increase in radio brightness over about eight years. The behavior resembles the vigorous feeding seen in the early universe, providing a nearby laboratory to study extreme accretion physics and jet production. The finding, published in The Astrophysical Journal (May), suggests such rapidly changing radio galaxies could help fill gaps in our understanding of early galaxy growth, with future SKA surveys expected to identify more transients.
Poleward North Pacific Storm Shift Outpaces Climate Models
New analysis using decades of sea-level pressure data shows North Pacific winter storm tracks are migrating north toward the Arctic faster than climate models project, a shift linked to climate change that coincides with Alaska’s glacier ice loss (~60 billion tons per year) and hotter, drier conditions across California and Nevada. The study suggests models may understate the risks of storm-track changes, implying Western North America could face more dramatic impacts than current projections indicate.
Inductive Effect Under Review: New Study Promotes a Molecule-Wide View of Electrons
A Newcastle University-led study challenges the long-standing inductive effect model used to explain how electron density shifts within organic molecules. Using modern computational analysis, the researchers argue that this traditional shortcut doesn’t always hold and propose explaining molecular behavior by considering the overall electron distribution across the entire molecule, not long-range inductive transmission. The finding could lead to updated chemistry textbooks and teaching, with implications for education, drug discovery, and materials science, though it does not overturn organic chemistry as a field.
DMS hints on a distant ocean-world exoplanet spark debate over life signals
K2-18b, a sub-Neptune about 124 light-years away, is a leading Hycean candidate that could harbor a global ocean beneath a hydrogen-rich atmosphere. Webb observations yielded two tentative signals of dimethyl sulfide, a gas commonly linked to marine life on Earth, but independent analyses question whether DMS was truly detected, leaving the existence of a biosignature on the planet unresolved and highlighting the need for more data and standardized detection criteria.
Webb detects two-faced WASP-121b: scorching dusk and cloudy dawn
JWST mapped WASP-121b’s atmosphere longitude by longitude during a single transit as the planet rotated, revealing a hotter, expanded evening limb with water dissociation and a cooler morning limb possibly hosting silicate clouds; this rotational‑transit effect shows strong day–night circulation on this ultra-hot Jupiter (dayside ~2770 K, nightside ~1000 K) and highlights how limb-averaged spectra can miss key chemistry and cloud features.
Cassini hints Saturn’s rings are a recent, fading feature
Cassini measurements imply Saturn’s rings are relatively young (roughly 10–400 million years old) and are currently draining into the planet, with ring rain alone potentially clearing them in about 100 million years; the exact age and loss rate are still debated, but the data tilt toward a transient, recently formed ring system that may soon disappear, with future JWST and ground observations expected to refine the timeline.
Sevoflurane silences neurons by locking sodium channels in an inactive state
An atomic-level study shows the anesthetic sevoflurane binds a pocket at the edge of the voltage-gated sodium channel pore, stabilizing the channel in an inactive state and dampening neuronal signaling—a finding that explains how inhaled anesthetics induce unconsciousness and could guide the design of safer drugs.
Cold Milky Way Objects Might Be Alien Dyson Swarms Around Small Stars
A new study proposes that some of the Milky Way’s coldest objects, currently catalogued as stars, could be Dyson swarm energy collectors built by advanced civilizations around red and white dwarfs. Such systems would absorb visible light and re-emit heat as infrared, altering their position on the Hertzsprung–Russell diagram and creating distinctive, cleaner infrared spectra and irregular brightness changes. Astronomers are using JWST and projects like Hephaistos to search for these signatures and distinguish them from natural dust clouds.