Sci‑News - Latest News and Information
Technology Pulse
EMAIL DIGESTS
Daily
Every morning
Weekly
Tuesday recap
EMAIL DIGESTS
Daily
Every morning
Weekly
Tuesday recap
New simulations reveal that Jupiter’s powerful magnetic field carved a magnetospheric cavity in its early circumplanetary disk, enabling the capture and long‑term survival of its four large moons, including Ganymede. In contrast, Saturn’s weaker field failed to produce such a cavity, leaving its disk dense and causing most large moons to migrate inward and be lost, leaving Titan as the dominant satellite. The study, published in Nature Astronomy, links magnetic field strength to divergent satellite architectures and predicts distinct exomoon patterns for gas giants of different sizes. The findings offer a unified framework for interpreting moon systems across the Solar System and beyond.
Colorado State University archaeologist Robert Madden has documented native‑American dice dating back 12,800‑12,200 years, predating any known Old World examples. The artifacts are two‑sided bone pieces, called binary lots, that produce a random heads‑or‑tails outcome when tossed in groups. By...
Astronomers using JWST's NIRSpec have measured the atmosphere of TOI-5205b, a Jupiter‑sized gas giant orbiting an M4 red dwarf in just 1.63 days. The transmission spectrum reveals an atmosphere unusually poor in heavy elements, even less metallic than its host...
Scientists have uncovered more than 700 Ediacaran fossils from the Jiangchuan Biota in Yunnan, China, dated between 554 and 539 million years ago. The assemblage includes the oldest known deuterostome relatives, early ambulacrarians, and possible chordate precursors, indicating that complex...
Scientists at Stony Brook University used nanoscale infrared and Raman spectroscopy on NASA’s OSIRIS‑REx sample OREX‑800066‑3 from asteroid Bennu. The analysis revealed that organic compounds and minerals occupy distinct chemical domains at 20‑500 nm resolution, indicating water‑driven alteration was spatially heterogeneous....
New quantum simulations reveal that carbon‑hydrogen compounds inside Uranus and Neptune can form a quasi‑one‑dimensional superionic state under extreme pressures of 500‑3,000 GPa and temperatures of 4,000‑6,000 K. In this phase, carbon atoms create an ordered hexagonal framework while hydrogen ions travel...
University of Chicago undergraduates have identified SDSS J0715‑7334 as the most metal‑poor star ever recorded, with a metallicity just 0.005 % of the Sun’s. The star, located about 80,000 light‑years away, originated in the Large Magellanic Cloud and migrated into the Milky...
Paleontologists have uncovered the most complete ichthyosaur skeleton ever found in Cuba, recovered from a limestone cave in the Viñales Geopark. The specimen dates to the Tithonian stage of the Late Jurassic, roughly 145 million years ago, extending the island's ichthyosaur...
Using the Vera C. Rubin Observatory, astronomers have cataloged over 11,000 previously unknown asteroids, including 33 near‑Earth objects and roughly 380 trans‑Neptunian bodies. The observations, gathered over a month and a half, amount to about one million individual measurements and...
The Hubble Space Telescope released a high‑resolution image of the barred spiral galaxy IC 486, located about 380 million light‑years away in Gemini. The photo reveals a bright central bar of older stars, bluish star‑forming regions in the disk, and wispy dust...
Researchers at University of Galway analyzed data from 793 adults in the Framingham Heart Study, measuring vitamin D levels in their late 30s and performing tau PET scans 16 years later. They found that participants with higher circulating 25‑hydroxyvitamin D...
Paleontologists have described *Balticolasma wunderlichi*, the first fossil member of the ortholasmatine subfamily, from two Eocene amber pieces—one from Ukraine’s Rovno deposit and another from Baltic amber. The 3‑mm long harvestman, reconstructed via synchrotron micro‑tomography, displays the ornate tubercles and...
Harvard paleontologists have described *Megachelicerax cousteaui*, an 8‑cm soft‑bodied arthropod from Utah’s Middle Cambrian Wheeler Formation. The specimen possesses unmistakable three‑segmented chelicerae and book‑gill‑like respiratory structures, establishing it as the oldest known chelicerate, predating the previous record by roughly 20 million...
A recent analysis of Parker Solar Probe data reveals that protons and heavy ions respond differently to magnetic reconnection near the Sun. Heavy ions are accelerated in tight, laser‑like beams, while protons generate scattering waves that disperse subsequent particles. This...
