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High-Sucrose Diet during Adolescence May Contribute to Pathogenesis of Psychiatric Disorders

Hirai et al. demonstrated that a high-sucrose diet during adolescence induces psychosis-related behavioral endophenotypes, including hyperactivity, poor working memory, impaired sensory gating, and disrupted interneuron function in mice deficient for GLO1, an enzyme involved in detoxification of sucrose metabolites. Image credit: Tokyo Metropolitan Institute of Medical Science.
Dec 28, 2021 by Enrico de Lazaro

Using a mouse model, a team of researchers at the Tokyo Metropolitan Institute of Medical Science demonstrated that high-dietary sucrose consumption during adolescence is a potential risk factor for the development of behavioral phenotypes associated with psychiatric illnesses, such as schizophrenia and bipolar disorder. Hirai et al. demonstrated that a high-sucrose diet during adolescence induces psychosis-related behavioral endophenotypes, including...

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Possible scenarios of terrestrial planet formation: in the classic Wetherill-type model of oligarchic growth, the terrestrial planets formed by mutual collisions among Moon- to Mars-sized planetary embryos after the gas disk dissipated and accreted only a small fraction of CC planetesimals, which were scattered inward during Jupiter’s growth and/or putative migration; alternatively, the terrestrial planets may have formed within the lifetime of the gas disk by efficiently accreting ‘pebbles’ from the outer Solar System, which drift sunward through the disk due to gas drag; the two models differ in the amount of outer solar system material accreted by the terrestrial planets, which may be quantified using nucleosynthetic isotope anomalies. Image credit: Burkhardt et al., doi: 10.1126/sciadv.abj7601.

Earth and Other Terrestrial Planets Formed from Inner Solar System Material, Study Suggests

Dec 28, 2021 by News Staff

Two fundamentally different processes of rocky planet formation exist, but it is unclear which one built the Earth and other terrestrial solar system planets....

An artist’s impression of a giant magnetar flare. Image credit: Universitat de València.

ASIM Detects Huge Pulsating Flare from Extragalactic Magnetar

Dec 27, 2021 by Enrico de Lazaro

The giant gamma-ray flare event, designated GRB 2001415, was emitted by a powerful magnetar in NGC 253, an active starburst galaxy approximately 11 million...

Microscopic cysts containing Toxoplasma gondii develop in the tissues of many vertebrates. Here, in mouse brain tissue, thousands of bradyzoites (stained red) are enveloped by a thin parasite cyst wall. Image credit: Jitinder P. Dubey.

New Study Shows How Dormant Toxoplasma Parasites Manipulate Neurons to Survive

Dec 27, 2021 by News Staff

Toxoplasma gondii develops a latent infection in the muscle and central nervous system that acts as a reservoir for acute-stage reactivation in vulnerable...

Trace Gas Orbiter Finds Water Ice in Martian Polar Crater

Dec 27, 2021 by News Staff

ESA’s Trace Gas Orbiter has returned a stunning image of a 4-km- (2.5-mile) wide crater located in Vastitas Borealis, the largest lowland region of Mars. The...

This Hubble image shows UGC 9391, a spiral galaxy some 120 million light-years away in the constellation Draco. Image credit: NASA / ESA / Hubble / Riess et al.

Hubble Space Telescope Views Lonely Spiral Galaxy

Dec 27, 2021 by Enrico de Lazaro

Astronomers using the NASA/ESA Hubble Space Telescope have produced a spectacularly detailed image of the spiral galaxy UGC 9391. This Hubble image shows...

The James Webb Space Telescope lifted off on an Ariane 5 rocket from Europe’s Spaceport in French Guiana on December 25, 2021, on its exciting mission to unlock the secrets of the Universe. Image credit: ESA / CNES / Arianespace.

Webb Launches to Study Universe in Infrared

Dec 26, 2021 by News Staff

The James Webb Space Telescope, an international partnership between NASA, ESA and the Canadian Space Agency (CSA), launched at 7:20 a.m. EST (13:20 CET)...

This image shows the Small Magellanic Cloud, a dwarf galaxy that is a satellite of our Milky Way Galaxy. Image credit: Pingel et al., arXiv: 2111.05339.

Astronomers Snap New Radio Image of Small Magellanic Cloud

Dec 24, 2021 by Enrico de Lazaro

A team of radio astronomers has assembled the most sensitive and detailed view of the neutral hydrogen emission associated with a nearby dwarf galaxy called...

Magnesium-18. Image credit: S.M. Wang / Fudan University & Facility for Rare Isotope Beams, Michigan State University.

Physicists Create New Isotope of Magnesium

Dec 24, 2021 by News Staff

Magnesium-18 (18Mg) is the lightest isotope of magnesium, which is element 12 on the periodic table. Magnesium-18. Image credit: S.M. Wang / Fudan University...

A designer view of a single-wall carbon nanotube intramolecular junction with metallic portions on left and right ends and a semiconductor ultrashort 3 nm channel in between. Image credit: Tang et al., doi: 10.1126/science.abi8884.

Scientists Turn Carbon Nanotubes into Tiny Transistors

Dec 24, 2021 by News Staff

Using a transmission electron microscope, a team of materials scientists led by the International Center for Materials Nanoarchitectonics in Japan and...

A life recreation of Cymbospondylus youngorum stalking the Nevadan oceans of the Late Triassic epoch, some 246 million years ago. Image credit: Stephanie Abramowicz.

244-Million-Year-Old Giant Ichthyosaur Unearthed in Nevada

Dec 24, 2021 by News Staff

With a skull size of 2 m (6.6 feet) and an estimated body size of 17 m (56 feet), the newly-identified ichthyosaur species is the largest animal discovered...

On December 10, 2021, DART’s DRACO camera captured and returned this image of Messier 38. Image credit: NASA / Johns Hopkins Applied Physics Laboratory.

NASA’s DART Spacecraft Captures Its First Images

Dec 23, 2021 by News Staff

Just two weeks after launch, NASA’s Double Asteroid Redirection Test (DART) spacecraft has returned its first images from space. On December 10, 2021,...

This MWA image shows Centaurus A at radio wavelengths, revealing vast lobes of plasma that reach far beyond the visible galaxy, which occupies only a small patch at the center of the image. The dots in the background are not stars, but radio galaxies much like Centaurus A, at far greater distances. Image credit: Ben McKinley, ICRAR & Curtin University / Connor Matherne, Louisiana State University.

Radio Astronomers Spot Bipolar Outflow from Centaurus A’s Supermassive Black Hole

Dec 23, 2021 by News Staff

Centaurus A (NGC 5128) is a giant elliptical galaxy 12 million light-years away in the constellation of Centaurus. In its center lies an actively feeding...

An underwater archaeologist holds a gold ring with a green gemstone. Image credit: Yaniv Berman, Israel Antiquities Authority.

Spectacular Artifacts Found in Two Ancient Shipwrecks

Dec 23, 2021 by News Staff

Archaeologists from the Marine Archaeology Unit of the Israel Antiquities Authority (IAA) have discovered hundreds of silver and bronze coins, silver and...

A valley in the Atacama Desert in Chile. Image credit: S. McMurtrey / CC BY-SA 4.0.

Iodine from Desert Dust Decreases Ozone Air Pollution, New Study Shows

Dec 23, 2021 by News Staff

Iodine, the same chemical added as a nutrient to table salt, is an atmospheric trace element emitted from oceans that efficiently destroys ozone. Low ozone...

An artist’s impression of the exoplanet HAT-P-11b with its extended helium atmosphere blown away by the star, an orange dwarf star smaller, but more active, than the Sun. Image credit: Denis Bajram.

HAT-P-11b Has Strong Magnetosphere, Metal-Poor Atmosphere

Dec 23, 2021 by News Staff

Using ultraviolet data from the NASA/ESA Hubble Space Telescope, astronomers have detected carbon ions — charged particles that interact with magnetic...

This artist’s impression shows an example of a free-floating planet with the Rho Ophiuchi cloud complex visible in the background. Image credit: ESO / M. Kornmesser.

Astronomers Find At Least 70 Free-Floating Exoplanets in Nearby Star-Forming Region

Dec 22, 2021 by News Staff

Using observations and archival data from several space- and ground-based telescopes, astronomers have discovered a rich population of free-floating planets...

New Caledonian crows (Corvus moneduloides) are particularly careful when handling their most valuable tools. Image credit: James St Clair.

New Caledonian Crows Prefer Hooked Stick Tools, Safely Store Them Underfoot or in Holes

Dec 22, 2021 by News Staff

According to a new study, New Caledonian crows (Corvus moneduloides) strongly prefer hooked stick tools made from stems of the ground tamarind (Desmanthus...

This image, captured by the SoloHI instrument onboard the ESA/NASA Solar Orbiter, shows the comet Leonard. Image credit: ESA / NASA / NRL / SoloHI.

NASA’s and ESA’s Sun-Studying Missions Observe Comet Leonard

Dec 22, 2021 by News Staff

When C/2021 A1 (Leonard), a recently-discovered long-period comet about 1 km wide, makes its closest pass of the Sun on January 3, 2022, it will be a journey...

An artist’s reconstruction of the oviraptorosaur egg and embryo from the Hekou Formation, Ganzhou, Jiangxi province, southern China. Image credit: Julius Csotonyi.

Paleontologists Find Exceptionally Preserved Embryo inside 70-Million-Year-Old Dinosaur Egg

Dec 22, 2021 by News Staff

The fossilized dinosaur egg from the Hekou Formation, Ganzhou, Jiangxi province, southern China, is elongate ovoid in shape with dimensions of 16.7 cm...

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