Category archives: Weekly Selection

MI weekly selection #478

MI weekly selection #478

Weekly Selection

By César Tomé

Blazars draw power from black holes High-energy particles such as neutrinos and cosmic rays that pummel the Earth from the depths of space originate in actively galactic nuclei fueled by giant black holes, known as blazars. “The discovery of the connection between these objects and the cosmic rays may be the ‘Rosetta stone’ of high-energy […]

MI weekly selection #477

MI weekly selection #477

Weekly Selection

By César Tomé

Mammals became warm-blooded around 233M years ago Warm-blooded mammals evolved roughly 233 million years ago, nearly 20 million years later than previously believed, after studying tiny inner ear canals that carry a viscous fluid called endolymph, which flows more easily when warmed and requires smaller passageways. The study looked at the inner ear canals of […]

MI weekly selection #476

MI weekly selection #476

Weekly Selection

By César Tomé

Sandy clouds swirl around brown dwarfs According to new modeling based on telescope data collected nearly 20 years ago, silicate-rich clouds swirling around brown dwarfs likely form when the chemistry and temperature –1,000 to 1,700 degrees Celsius — of the atmospheres of the substellar objects align. Full Story: Space Plant cycles affected by urban lighting […]

MI weekly selection #475

MI weekly selection #475

Weekly Selection

By César Tomé

Robots recreate evolutionary journey of ancient ammonites By studying the dynamic interaction between maneuverability and stability in robotic ammonites, a team of researchers has traced the evolution of shell variations of live ammonite shells in response to different needs and advantages. “Throughout their evolution, externally shelled cephalopods navigated their physical limitations by endlessly experimenting with […]

MI weekly selection #474

MI weekly selection #474

Weekly Selection

By César Tomé

Jawbone discovery shows vicious bear dog’s power, reach The discovery of a near-complete jawbone of a newly identified species of “bear dog” indicates the ancient beasts were powerful predators with a global presence when they roamed the earth up to 23 million years ago. The flat-footed, long-snouted bear dogs ranged in size from 9 to […]

MI weekly selection #474

MI weekly selection #474

Weekly Selection

By César Tomé

Tissue study shows ancient squid as ferocious predator The modern vampire squid may be a docile, soft-bodied animal, but new data suggests its prehistoric ancestor, Vampyronassa rhodanica, was a muscular ocean predator. Researchers analyzed fossilized soft tissues and found that the ancient cephalopods, which date back 164 million years, came equipped with a streamlined body […]

MI weekly selection #473

MI weekly selection #473

Weekly Selection

By César Tomé

Jupiter feasted on baby planets to fuel growth Researchers constructed a model based on gravitational data from NASA’s Juno space probe and other sources to examine the core of Jupiter, finding its center is filled with planetesimals, baby planets that the massive giant used to fuel its own growth. Full story: Live Science Lack of […]

MI weekly selection #472

MI weekly selection #472

Weekly Selection

By César Tomé

Kelp forests thriving in Patagonia’s cool waters Large kelp forests are thriving and healthy in Patagonia, according to a study the region’s cold spells are maintaining the 200-year-old forests along the coast of the southern end of South America. Researchers studied roughly 40 years of surface temperature data taken along the coastline and found that […]

MI weekly selection #471

MI weekly selection #471

Weekly Selection

By César Tomé

Milky Way’s closest quasar brimming with radio emissions Using a newly developed technique known as “self-calibration,” a team of Japanese astronomers has captured revolutionary photos of the closest quasar to the Milky Way, revealing a soft band of radio emission in the quasar’s galaxy. “By applying the same technique to other quasars, we expect to […]

MI weekly selection #470

MI weekly selection #470

Weekly Selection

By César Tomé

AI identifies viruses with high zoonotic potential Artificial intelligence identified viruses in the bunyavirus, rhabdovirus, filovirus and flavivirus families as the viruses most likely to spill over from animals to humans, and the platform may help researchers better estimate risks of zoonosis within viral families. The computer model also identified the Amazon River basin as […]