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Immunization with ChAd-SARS-CoV-2-S induces both neutralizing antibody and antigen-specific CD8+ T cell responses. While a single intramuscular immunization of ChAd-SARS-CoV-2-S confers protection against SARS-CoV-2 infection and inflammation in the lungs, intranasal delivery of the vaccine induces mucosal immunity, provides superior protection, and possibly promotes sterilizing immunity, at least in mice that transiently or stably express the hACE2 receptor. Image credit: Hassan et al, doi: 10.1016/j.cell.2020.08.026.

Experimental Nasal Vaccine Protects Upper and Lower Respiratory Tracts against SARS-CoV-2

Aug 27, 2020 by News Staff

A single-dose intranasal vaccine called ChAd-SARS-CoV-2-S prevents SARS-CoV-2 infection in both the upper and lower respiratory tracts of mice, according...

Light microscope images of Melinnopsis gardelli: (A) holotype, lateral view of complete specimen; (B) holotype, dorsal view of anterior region, arrow indicates postbranchial dorsal membrane; (C) holotype prostomium, arrow indicates slightly raised lip; (D) lateral view of anterior region, arrows indicate acicular neurochaetae and (E) ventral view of anterior region showing ventral shields. Scale bars - 1 mm. Image credit: Gunton et al, doi: 10.3853/j.2201-4349.72.2020.1763.

Two New Species of Deep-Sea Worms Discovered

Aug 26, 2020 by Natali Anderson

An international team of marine biologists has described two new species of the polychaete worm genus Melinnopsis from deep waters off the east coast of...

When the bar (horizontal in yellow and white) is in its shorter phase on the left, a few spiral arms can be seen near, but not quite firmly connected to the bar. Meanwhile, when the bar is at its longest on the right, there are two stronger spiral arms passing through this time around. These are more clearly connected to either end of the bar, effectively dragging it out and slowing it down. Image credit: Hilmi et al, doi: 10.1093/mnras/staa1934.

Astronomers Offer Solution to ‘Galactic Bar Paradox’

Aug 26, 2020 by News Staff

A team of astronomers from Germany, the United Kingdom, the United States, France and Japan may have solved the so-called ‘Galactic bar paradox,’ whereby...

Earth’s internal structure: dense solid metallic core, viscous metallic outer core, mantle and silicate based crust. Image credit: NASA.

Earth’s Inner Core is Around 1.15 Billion Years Old, Study Shows

Aug 26, 2020 by News Staff

The inner core of our planet is between 1 and 1.3 billion years old, according to new research led by the University of Texas at Austin and Carnegie Institution...

Weekend recovery sleep doesn’t prevent weight gain or reduce insulin sensitivity. Image credit: Wok & Apix.

Long Napping Increases Risk of Cardiovascular Disease, Study Finds

Aug 26, 2020 by News Staff

Long napping over one hour per day is associated with increased risks of incident cardiovascular disease and all-cause mortality, according to a new meta-analysis...

An artist’s conception of the HR 858 planetary system. Image credit: Sci-News.com.

Artificial Intelligence Validates 50 Exoplanets in Kepler Data

Aug 26, 2020 by News Staff

A team of astronomers in the United Kingdom has used a machine learning algorithm to analyze a sample of candidate exoplanets identified by NASA’s Kepler...

A mustatil in the Nefud Desert, northern Arabia. Image credit: Huw Groucutt.

Archaeologists Find 7,000-Year-Old Stone Monuments in Northern Arabia

Aug 25, 2020 by Enrico de Lazaro

An international team of archaeologists has found and studied 104 enigmatic stone structures called ‘mustatils’ in the southern part of the Nefud Desert...

An artist’s impression of a free-floating exoplanet. Image credit: NASA / JPL-Caltech / R. Hurt, Caltech-IPAC.

Free-Floating Exoplanets May Outnumber Stars in Milky Way

Aug 25, 2020 by News Staff

Free-floating, or rogue, exoplanets — free-floating planetary-mass objects that do not orbit a star and instead travel through space — could...

An aerial photo of the Canaanite fortress near Gal On in central Israel. Image credit: Emil Aladjem, Israel Antiquities Authority.

Archaeologists Unearth Canaanite Fortress in Central Israel

Aug 25, 2020 by News Staff

Archaeologists from the Israel Antiquities Authority (IAA) have uncovered the ruins of a 3,200-year-old Canaanite fortress near Gal On, a kibbutz in central...

The Solar System moves through the Local Interstellar Cloud. Image credit: NASA / Adler / University of Chicago / Wesleyan.

Solar System is Traveling through Cloud of Supernova Debris: Study

Aug 25, 2020 by Enrico de Lazaro

An international team of scientists has found interstellar iron-60, a radioactive isotope with a half-life of 2.6 million years that is predominantly produced...

A hoard of Islamic gold coins dating from the 9th century CE, found near Yavne in Israel. Image credit: Emil Aladjem / Israel Antiquities Authority.

Huge Trove of Gold Coins from Abbasid Period Unearthed in Israel

Aug 25, 2020 by News Staff

A team of archaeologists and volunteers has unearthed a hoard of 1,100-year-old Islamic gold coins near the city of Yavne in the Central District of Israel. A...

The MUSE instrument on ESO’s Very Large Telescope captured this image of NGC 1365 in optical and infrared light, showing the gas and dust in the central region of the galaxy. Image credit: ESO / TIMER Survey.

VLT Snaps Spectacular Image of NGC 1365

Aug 24, 2020 by Enrico de Lazaro

Astronomers using the MUSE (Multi Unit Spectroscopic Explorer) instrument on ESO’s Very Large Telescope (VLT) in Chile have captured a beautiful image...

Paleontologists Find Massive Marine Reptile in Stomach of Triassic Ichthyosaur

Aug 24, 2020 by News Staff

A new fossil of Guizhouichthyosaurus, a 5-m- (16.4-foot) long ichthyosaur that swam in Middle Triassic oceans some 240 million years ago, contains the...

Tasmanian tigers (Thylacinus cynocephalus) in captivity. Image credit: University of Melbourne / Museums Victoria.

Thylacine Was Smaller Than Previously Estimated

Aug 24, 2020 by News Staff

Until its extinction, the thylacine (Thylacinus cynocephalus) was the largest living carnivorous marsupial, but little data exist regarding its body mass,...

Platymantis navjoti male in life. Image credit: Cameron Siler, University of Oklahoma.

New Species of Forest Frog Discovered in Philippines

Aug 24, 2020 by Natali Anderson

An international team of field biologists has described a new species of the frog genus Platymantis from Leyte and Samar islands, the Philippines. The...

This Hubble image shows a small portion of the Cygnus Loop, a donut-shaped nebula located 2,400 light-years away in the constellation of Cygnus. Image credit: NASA / ESA / Hubble / W. Blair / Leo Shatz.

Hubble Space Telescope Sees Outer Edge of Cygnus Loop

Aug 24, 2020 by Enrico de Lazaro

A new image from the NASA/ESA Hubble Space Telescope shows a tiny portion of a nebula called the Cygnus Loop. This Hubble image shows a small portion of...

This image of comet C/2020 F3 (NEOWISE) was taken by Hubble on August 8, 2020. Image credit: NASA / ESA / A. Pagan, STScI / Q. Zhang, Caltech.

Hubble Captures Close-Up Image of Comet NEOWISE

Aug 21, 2020 by News Staff

A new image from the NASA/ESA Hubble Space Telescope shows the coma of comet C/2020 F3 (NEOWISE) and its dusty output. This image of comet C/2020 F3 (NEOWISE)...

Life reconstruction of Kamuysaurus japonicus with a carcass of a mosasaur (Phosphorosaurus ponpetelegans), a sea turtle (Mesodermochelys undulates), and shells of ammonoids (Patagiosites compressus and Gaudryceras hobetsense) and bivalves (Nannonavis elongatus) on the beach. Image credit: Kobayashi et al, doi: 10.1038/s41598-019-48607-1.

New Study Helps Explain How Dinosaur Skeletons Supported Massive Loads

Aug 21, 2020 by News Staff

A team of paleontologists and mechanical and biomedical engineers has compared CT scans of the fossilized bones of hadrosaurs and other dinosaurs with...

Open and closed lakes on early Mars. Image credit: University of Texas at Austin.

Heavy Rains Filled Lakes and Rivers on Early Mars, New Research Suggests

Aug 21, 2020 by News Staff

Planetary researchers from the University of Texas at Austin and NASA’s Marshall Space Flight Center have used dry paleolakes and riverbeds to determine...