Page 126 | Sci.News: Breaking Science News

Tracking changes among Environmental and Politics Twitter users: (A) the proportion of users that were active in each 15-day window; (B) the rate of change in the proportion of active users for both samples. In both plots, the points depict the observed data while the color band with a broken line shows the 99% confidence interval based on a bootstrap sample of the data. The broken vertical line corresponds to April 25, 2022, when the Twitter board accepted Musk’s initial purchase offer, and the heavier broken line corresponds to October 28, 2022, when Musk’s takeover was finalized. Image credit: Chang et al., doi: 10.1016/j.tree.2023.07.002.

Study: Twitter May Have Lost Half of Environmentally-Oriented Users Since Elon Musk Took Over

Aug 16, 2023 by Sergio Prostak

In a study sample of 380,000 environmentally oriented users, nearly 47.5% became inactive on Twitter (recently renamed X) after it was sold in October...

Ruan et al. demonstrate how glacial cycle variability synchronized hominin habitat overlap, Denisovan-Neanderthal interbreeding, and early human gene flow. Image credit: Axel Timmermann.

Climate Shifts Orchestrated Interbreeding between Neanderthals and Denisovans, New Study Says

Aug 15, 2023 by News Staff

Looking at habitat overlap for Neanderthals and Denisovans, Pusan National University researcher Jiaoyang Ruan and colleagues found patterns of interbreeding...

The hadrosaur footprints at the Coliseum site. Image credit: Patrick Druckenmiller.

Paleontologists Discover Largest Known Dinosaur Track Site in Alaska

Aug 15, 2023 by News Staff

Dubbed the Coliseum, the newly-discovered paleontological site contains ornithopod, ceratopsid, and large and small-bodied avian and non-avian theropod...

This image shows the Maisie’s galaxy. Image credit: NASA / STScI / CEERS / TACC / University of Texas at Austin / S. Finkelstein / M. Bagley.

Webb Confirms Two Very Luminous Galaxies in Early Universe

Aug 15, 2023 by Natali Anderson

During the first 500 million years of cosmic history, the first stars and galaxies formed, seeding the Universe with heavy elements and eventually reionizing...

A muon particle passing through lead in a cloud chamber. Image credit: Jino John 1996 / CC BY-SA 4.0.

Physicists Measure Muon’s Magnetic Moment with Unprecedented Precision

Aug 15, 2023 by News Staff

Physicists report a new measurement of the muon magnetic anomaly using data collected in 2019 and 2020 by the Muon g-2 experiment at Fermilab National...

Hallakoun et al. report observations revealing an extremely irradiated low-mass companion to the hot white dwarf WD 0032-317. Image credit: NASA / ESA / G. Bacon, STScI.

Newly-Discovered Brown Dwarf is Hotter than the Sun

Aug 15, 2023 by Enrico de Lazaro

WD 0032-317B, a brown dwarf orbiting around the hot, low-mass white dwarf WD 0032-317, is estimated to have a surface temperature of about 8,000 K and...

Life reconstruction of Prosaurosphargis yingzishanensis depicted in the Early Triassic shallow marine environment of the Nanzhang-Yuan’an region, Hubei Province, South China. Image credit: Wolniewicz et al., doi: 10.7554/eLife.83163.

Triassic Armored Marine Reptile Unearthed in China

Aug 14, 2023 by Enrico de Lazaro

The newly-described saurosphargid reptile Prosaurosphargis yingzishanensis represents the earliest known occurrence of its clade. Life reconstruction of...

This image, taken with the VIRCAM instrument on ESO’s Visible and Infrared Survey Telescope for Astronomy, shows NGC 6723, a globular cluster some 28,000 light-years away in the constellation of Sagittarius. The image is based on data obtained through three filters. Image credit: ESO / Meingast et al.

VISTA Telescope Captures NGC 6723 in Infrared Light

Aug 14, 2023 by Enrico de Lazaro

Astronomers using ESO’s Visible and Infrared Survey Telescope for Astronomy (VISTA) at Paranal Observatory have produced a spectacularly detailed infrared...

For most of the time, Saturn’s atmosphere looks hazy and featureless to the naked eye in contrast to Jupiter’s colorful and vibrant atmosphere. This picture changes when we look at Saturn using a radio eye. Despite bland looking at the visible wavelengths, different latitudes on Saturn show dramatic contrast in the radio emission. In 2015, Li et al. found substantial brightness temperature variations -- greater than the temperature increase caused by the 2010 storm -- as a function of latitude and radio wavelength based on spatially resolved radio images of Saturn, as obtained from the VLA. Via a spectral inversion study, they created a latitude-altitude map of ammonia concentration anomalies from these images and correlate the anomalies to the occurrences of past giant storms in the northern hemisphere. Image credit: S. Dagnello / NRAO / AUI / NSF / Li et al., doi: 10.1126/sciadv.adg9419.

VLA Reveals Megastorm-Centric Disruptions in Saturnian Atmosphere

Aug 14, 2023 by News Staff

Planetary-scale giant storms erupt on Saturn periodically. There have been at least six recorded occurrences of past eruptions, and the most recent one...

Delgadillo-Puga et al. show cardamom could be a healthy dietary choice, and that its consumption can help maintain lean body weight and reduce fat. Image credit: PDPics.

Cardamom Seed Consumption Increases Appetite and Reduces Fat, New Research Suggests

Aug 14, 2023 by Natali Anderson

Cardamom seed (Elettaria cardamomum) is consumed in several countries worldwide and is considered a nutraceutical spice since it exerts antioxidant, anti-inflammatory,...

This Hubble image shows ACO 3322, a very massive galaxy cluster located 2.6 billion light-years away in the constellation of Pictor. Image credit: NASA / ESA / Hubble / H. Ebeling.

Hubble Space Telescope Spots X-ray Bright Galaxy Cluster

Aug 14, 2023 by Enrico de Lazaro

The Hubble astronomers have released a new image taken by the NASA/ESA Hubble Space Telescope of the massive galaxy cluster ACO 3322. This Hubble image...

The Mörigen arrowhead. Image credit: Thomas Schüpbach.

2,800-Year-Old Arrowhead Was Made of Meteoritic Iron, Archaeologists Say

Aug 11, 2023 by Natali Anderson

The detection of the cosmogenic isotope aluminum-26; the concentrations of nickel, cobalt, germanium and gallium; and the presence of two minerals called...

Life reconstruction of Tutcetus rayanensis swimming in the Tethys Ocean 41 million years ago. Image credit: Ahmed Morsi / Hesham Sallam / Mansoura University Vertebrate Paleontology Center.

Miniature Basilosaurid Whale from Eocene Was Just 8 Feet Long

Aug 10, 2023 by News Staff

The newly-identified species of basilosaurid whale has been named Tutcetus rayanensis after the ancient Egyptian pharaoh Tutankhamun. This new species...

Life reconstruction of the Alaskan saurornitholestine dinosaur in its environment. Image credit: Andrey Atuchin.

Tiny Shrew-Like Mammal Lived in Arctic 73 Million Years Ago

Aug 10, 2023 by News Staff

A new genus and species of eutherian mammal has been described from a handful of tiny teeth found in the Prince Creek Formation in northern Alaska, the...

The occasional use of stone tools as ‘strike-a-lights’ was a technocultural feature shared among Neanderthals in France.

Extreme Glacial Cooling Caused Extinction of Early Pleistocene Hominins in Europe, Study Says

Aug 10, 2023 by News Staff

New paleoclimate evidence shows that around 1.1 million years ago, the southern European climate cooled significantly and caused an extinction of archaic...

Polygonal ridges on Mars: (a) general view of bedrock surrounding the rover on sols 3,154 to 3,156 showing widespread polygonal ridges; (b) close-up showing ‘stepped’ exposure of polygons within large bedrock blocks; (c) view of bedrock with polygons and locations of ChemCam analysis on ridge (red rectangle) and APXS analysis on smooth host bedrock (dotted circle); (d) remote micro-image of cemented ridge with spots analyzed by ChemCam (reticles 1 to 5), highlighting details of nodular texture; (e, f) bedrock with polygonal pattern (e) and interpretative overlay (f) that shows prominent ridges (solid red lines), less certain ridges (dotted red lines) and cross-cutting later-stage Ca-sulfate-filled veins (white areas). Image credit: Rapin et al., doi: 10.1038/s41586-023-06220-3.

Early Mars Had a Sustained, Cyclic, Possibly Seasonal, Climate

Aug 10, 2023 by News Staff

New observations of mud cracks made by NASA’s Curiosity rover show that high-frequency, wet-dry cycling occurred in early Martian surface environments,...

Parasites found in the vertebrate coprolite from Thailand. Image credit: Nonsrirach et al., 10.1371/journal.pone.0287891.

Triassic Crocodile-Like Reptile Was Infected by Multiple Parasite Species

Aug 10, 2023 by News Staff

Paleontologists have found several species of parasites, including Ascaridida eggs, in a 200-million-year-old coprolite probably produced by a crocodile-like...

This Webb image shows Earendel, a massive B-type star more than twice as hot as our Sun, and about a million times more luminous. Image credit: NASA / ESA / CSA / D. Coe, STScI, AURA, ESA & Johns Hopkins University / B. Welch, NASA’s Goddard Space Flight Center & University of Maryland, College Park / Z. Levay.

Earendel is Massive B-Type Star, Webb Astronomers Say

Aug 9, 2023 by News Staff

Earendel, the farthest known star, is a massive B-type star more than twice as hot as our Sun, and about a million times more luminous, according to an...

The golden-crowned sparrow (Zonotrichia atricapilla) in British Columbia, Canada. Image credit: Alejandro Erickson / CC BY 2.0.

Golden-Crowned Sparrows Home In on Close-Knit Flockmates: Study

Aug 9, 2023 by News Staff

The golden-crowned sparrow (Zonotrichia atricapilla) is a large species of New World sparrow found in the western part of North America. University of...