Page 527 | Sci.News: Breaking Science News

Marco Onorati et al. describe the derivation and characterization, including single-cell RNA-seq, of neocortical and spinal cord neuroepithelial stem (NES) cells to model early human neurodevelopment and Zika virus (ZIKV)-related neuropathogenesis. By analyzing human NES cells, organotypic fetal brain slices, and a ZIKV-infected micrencephalic brain, the team shows that ZIKV infects both neocortical and spinal NES cells as well as their fetal homolog, radial glial cells (RGCs), causing disrupted mitoses, supernumerary centrosomes, structural disorganization, and cell death. ZIKV infection of NES cells and RGCs causes centrosomal depletion and mitochondrial sequestration of phospho-TBK1 during mitosis. The scientists also found that nucleoside analogs inhibit ZIKV replication in NES cells, protecting them from ZIKV-induced pTBK1 relocalization and cell death. They established a model system of human neural stem cells to reveal cellular and molecular mechanisms underlying neurodevelopmental defects associated with ZIKV infection and its potential treatment. Image credit: Marco Onorati et al.

Researchers Discover How Zika Virus Causes Fetal Brain Damage

Aug 25, 2016 by News Staff

According to a team of researchers led by Yale University, infection by the Zika virus diverts a key protein necessary for neural cell division in the...

Blazars are the most common sources detected by NASA’s Fermi Gamma-ray Space Telescope. As matter falls toward the supermassive black hole at the galaxy’s center, some of it is accelerated outward at nearly the speed of light along jets pointed in opposite directions. When one of the jets happens to be aimed in the direction of Earth, as illustrated here, the galaxy appears especially bright and is classified as a blazar. Image credit: M. Weiss / CfA.

NASA Space Telescopes Reveal Unexpected Blazar Connection

Aug 24, 2016 by News Staff

Astronomers studying black-hole-powered galaxies called blazars have uncovered a surprising link between two very different wavelengths of the light these...

This artist’s impression shows Proxima b orbiting Proxima Centauri, which at only 4.23 light-years is the closest star to our Solar System. The double star Alpha Centauri AB also appears in the image between the exoplanet and Proxima itself. Image credit: M. Kornmesser / ESO.

Earth-Mass Exoplanet Found in Habitable Zone around Proxima Centauri

Aug 24, 2016 by James Romero

A planet described as the ‘single most promising exoplanet discovered to date in terms of habitability’ and a ‘natural location where our civilization...

Reconstruction of the cave bear (Ursus spelaeus). Image credit: Sergio de la Larosa / CC BY-SA 3.0.

Isotope Studies Shed Light on Dietary Habits of Extinct Cave Bear

Aug 24, 2016 by News Staff

An international team of paleontologists from Belgium, Germany, Canada and Japan has taken a step back in time and provided a new insight into the lifestyle...

Portrait of Anna McNeill Whistler by James Abbott McNeill Whistler, summer 1871.

Scientists Identify Several Genes Associated with Age-Related Conditions

Aug 24, 2016 by News Staff

In an animal study, an international team of researchers led by Medical Research Council (MRC) Harwell Institute scientist Dr. Steve Brown has uncovered...

Map showing distribution of inverted channels (black lines) and valley networks (white lines) in Arabia Terra, Mars. Many of the inverted channels (e.g., southwest region of study area) are not associated with valley networks. Background image is Mars Orbital Laser Altimeter gridded topographic map. Image credit: J.M. Davis et al.

Planetary Researchers Find Evidence of Ancient River Systems in Mars’ Arabia Terra

Aug 23, 2016 by News Staff

An international team of scientists led by University College London researcher Joel Davis has identified over 10,500 miles (17,000 km) of ancient river...

Reconstruction of Microleo attenboroughi. Image credit: Peter Schouten.

Microleo attenboroughi: New Species of Marsupial Lion Unearthed in Australia

Aug 23, 2016 by News Staff

A new species of marsupial lion that lived approximately 18 million years ago has been identified from fossils found in Australia. Reconstruction of Microleo...

Honey is considered an added sugar. Image credit: Estel Heitz.

American Heart Association: Children Should Consume Less Than 25 Grams of Added Sugars Daily

Aug 23, 2016 by News Staff

Children ages 2 to 18 should eat or drink less than six teaspoons of added sugars daily (equivalent to about 100 calories or 25 grams), according to new...

Normal anatomy of the human eye and orbit, anterior view. Image credit: Patrick J. Lynch / CC BY 2.5.

Researchers Discover New Type of Eye Movement

Aug 23, 2016 by News Staff

A team of scientists at the University of Tübingen in Germany has discovered a new type of eye movement that is synchronized with blinking. Normal anatomy...

Artist’s impression of the disc and outflow around the massive protostar G11.92–0.61 MM1. Image credit: A. Smith / Institute of Astronomy, Cambridge.

Astronomers Find Heavyweight Protostar in Milky Way Galaxy

Aug 22, 2016 by News Staff

An international team of astronomers has identified a massive protostar, G11.92–0.61 MM1 (MM1 for short), which could help scientists understand how...

Mexican amber ptilodactyline beetle with attached pollinium of Annulites mexicana (arrow). Scale bar - 0.4 mm. Image credit: George Poinar Jr.

Ancient Beetles Pollinated Orchids 20 Million Years Ago

Aug 22, 2016 by News Staff

Certain beetles are known to pollinate plants. New fossil evidence from Mexican and Dominican fossilized amber indicates that they were doing so 20 million...

Adonis, a 1,075-year-old Bosnian pine. Image credit: Oliver Konter.

1,075-Year-Old Bosnian Pine Among Europe’s Oldest Known Living Trees

Aug 22, 2016 by Natali Anderson

According to a team of botanists and dendrochronologists from the University of Arizona, Stockholm University and the University of Mainz, a pine growing...

This image, taken with Hubble’s Advanced Camera for Surveys, shows the dwarf irregular galaxy NGC 5264. Image credit: NASA / ESA / Hubble.

Hubble Space Telescope Spies Dwarf Irregular Galaxy NGC 5264

Aug 22, 2016 by News Staff

This beautiful NASA/ESA Hubble Space Telescope image captures a galaxy called NGC 5264. This image, taken with Hubble’s Advanced Camera for Surveys,...

Hyperspectral imaging revealed hidden images in the Codex Selden. Image credit: Ludo Snijders et al.

Hidden Images Revealed in Pre-Hispanic Mixtec Manuscript ‘Codex Selden’

Aug 20, 2016 by News Staff

An international team of scientists led by Leiden University researcher Ludo Snijders has used the so-called ‘hyperspectral imaging’ to uncover the...

In this artist’s conception GJ 1132b circles a red dwarf star. Image credit: Dana Berry.

Nearby Earth-Sized Exoplanet GJ 1132b Might Have Oxygen-Rich Atmosphere

Aug 19, 2016 by News Staff

In this artist’s conception GJ 1132b circles a red dwarf star. Image credit: Dana Berry. GJ 1132b, an extrasolar planet about 1.2 times the size and...

Close Encounters between Centaurs and Gas Giants Form Our Solar System’s ‘Pinky Rings’

Aug 19, 2016 by James Romero

Our gas giants strip the icy surface off minor planets to form miniature versions of Saturn’s famous rings throughout the outer solar system, according...

Reconstruction of the marsupial lion (Thylacoleo carnifex). Image credit: Mauricio Antón.

Marsupial Lion Thylacoleo carnifex Had Unique Hunting Style, Paleontologists Say

Aug 18, 2016 by News Staff

An international team of paleontologists has proposed that an extinct animal called the marsupial lion (Thylacoleo carnifex) hunted in a very unique way...

Callanish on the Isle of Lewis is 43 feet (13 m) in diameter with a long stone avenue running north-southwards (southwards is towards the circle) and single long stone rows radiating outwards towards the other three cardinal points. Image credit: Gail Higginbottom & Roger Clay / RCAHMS.

Britain’s Oldest ‘Great Circles’ Were Built by Ancient Astronomers

Aug 18, 2016 by News Staff

New research published in the Journal of Archaeological Science: Reports has statistically proven that the earliest standing stone monuments of Britain...

Dr. Vaccaro is challenging the conventional view of space and time to show how the world advances through time. Image credit: Geralt.

Novel Theory on Moving Through Time

Aug 18, 2016 by News Staff

A physicist at Griffith University in Australia has solved an anomaly of conventional physics and shown that a mysterious effect called ‘T violation’...