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A galaxy’s stop-and-start young radio jets

Multi-frequency composite VLBA image of the galaxy TXS 0128+554, 500 million light-years from Earth. The image shows young radio jets originating near a supermassive black hole at the core of the galaxy. The jets in this image started about 80 years ago, stopped, then resumed about 10 years ago. Credit: Lister et al.; Sophia Dagnello,…

Ancient star explosions revealed in deep-sea sediments

Supernova concept illustration (stock image). Credit: © Corona Borealis / stock.adobe.com A mystery surrounding the space around our solar system is unfolding thanks to evidence of supernovae found in deep-sea sediments. Professor Anton Wallner, a nuclear physicist at ANU, led the study which shows Earth has been travelling for the last 33,000 years through a…

Galactic bar paradox resolved in cosmic dance

Spiral galaxy concept illustration (stock image). Credit: © Alexandr Mitiuc / stock.adobe.com New light has been shed on a mysterious and long-standing conundrum at the very heart of our galaxy. The new work offers a potential solution to the so-called 'Galactic bar paradox', whereby different observations produce contradictory estimates of the motion of the central…

Genomic analysis reveals many animal species may be vulnerable to SARS-CoV-2 infection

Sumatran orangutan (stock image). Credit: © Anton Petrus / stock.adobe.com Humans are not the only species facing a potential threat from SARS-CoV-2, the novel coronavirus that causes COVID-19, according to a new study from the University of California, Davis. An international team of scientists used genomic analysis to compare the main cellular receptor for the…

Understanding how birds respond to extreme weather can inform conservation efforts

Yellow-bellied sapsucker (stock image). Credit: © karel / stock.adobe.com When it comes to climate change, University of Wisconsin-Madison forest and wildlife ecology Professor Ben Zuckerberg says birds are the proverbial canary in the coal mine. They are both responsive and sensitive to changes in the environment, including the extreme weather events associated with a warming…

Hubble snaps close-up of celebrity comet NEOWISE

This image of comet C/2020 F3 (NEOWISE) was taken by the Hubble Space Telescope on Aug. 8, 2020. Hubble's image represents the first time a comet of this brightness has been photographed at such resolution after this close of a pass by the Sun. The two structures appearing on the left and right sides of…

Researchers track slowly splitting ‘dent’ in Earth’s magnetic field

Earth's magnetic field illustration (stock image). Credit: © koya979 / stock.adobe.com A small but evolving dent in Earth's magnetic field can cause big headaches for satellites. Earth's magnetic field acts like a protective shield around the planet, repelling and trapping charged particles from the Sun. But over South America and the southern Atlantic Ocean, an…

Exploding stars may have caused mass extinction on Earth, study shows

Devonian landscape concept illustration (stock image). Credit: © nicolasprimola / stock.adobe.com Imagine reading by the light of an exploded star, brighter than a full moon -- it might be fun to think about, but this scene is the prelude to a disaster when the radiation devastates life as we know it. Killer cosmic rays from…

When you’re smiling, the whole world really does smile with you

Smiling friends (stock image). Credit: © fizkes / stock.adobe.com From Sinatra to Katy Perry, celebrities have long sung about the power of a smile -- how it picks you up, changes your outlook, and generally makes you feel better. But is it all smoke and mirrors, or is there a scientific backing to the claim?…

Warming Greenland ice sheet passes point of no return

Greenland fjord (stock image). Credit: © Di / stock.adobe.com Nearly 40 years of satellite data from Greenland shows that glaciers on the island have shrunk so much that even if global warming were to stop today, the ice sheet would continue shrinking. The finding, published today, Aug. 13, in the journal Nature Communications Earth and…

Researchers make green chemistry advance with new catalyst for reduction of carbon dioxide

Carbon dioxide molecules illustration (stock image). Credit: © Ted Reinhard / stock.adobe.com Researchers at Oregon State University have made a key advance in the green chemistry pursuit of converting the greenhouse gas carbon dioxide into reusable forms of carbon via electrochemical reduction. Published in Nature Energy, the study led by Zhenxing Feng of the OSU…

Quantum researchers create an error-correcting cat

Schrödinger's cat concept (stock image). Credit: © Katerina Pavlichenko / stock.adobe.com Yale physicists have developed an error-correcting cat -- a new device that combines the Schrödinger's cat concept of superposition (a physical system existing in two states at once) with the ability to fix some of the trickiest errors in a quantum computation. It is…

Extremely young galaxy is Milky Way look-alike

Astronomers using ALMA, in which the ESO is a partner, have revealed an extremely distant galaxy that looks surprisingly like our Milky Way. The galaxy, SPT0418-47, is gravitationally lensed by a nearby galaxy, appearing in the sky as a near-perfect ring of light. Credit: ALMA (ESO/NAOJ/NRAO), Rizzo et al. Astronomers using the Atacama Large Millimeter/submillimeter…

Seasonal flu vaccinations don’t ‘stick’ long-term in bone marrow

Vaccine injection photo concept (stock image). Credit: © terovesalainen / stock.adobe.com A study from Emory Vaccine Center provides insights into why the boost in immunity from seasonal flu vaccination lasts for months but not years, unlike some childhood vaccinations. The home base for immune cells that produce antibodies is the bone marrow. Seasonal flu vaccination…

Loss of a specific enzyme boosts fat metabolism and exercise endurance in mice

Mouse on exercise wheel (stock image). Credit: © Emilia Stasiak / stock.adobe.com Sugars and fats are the primary fuels that power every cell, tissue and organ. For most cells, sugar is the energy source of choice, but when nutrients are scarce, such as during starvation or extreme exertion, cells will switch to breaking down fats…

Researchers discover the microbiome’s role in attacking cancerous tumors

Gut bacteria illustration (stock image). Credit: © nobeastsofierce / stock.adobe.com Researchers with the Snyder Institute for Chronic Diseases at the Cumming School of Medicine (CSM) have discovered which gut bacteria help our immune system battle cancerous tumours and how they do it. The discovery may provide a new understanding of why immunotherapy, a treatment for…

Ancient genomes suggest woolly rhinos went extinct due to climate change, not overhunting

Woolly rhinoceros illustration (stock image). Credit: © auntspray / stock.adobe.com The extinction of prehistoric megafauna like the woolly mammoth, cave lion, and woolly rhinoceros at the end of the last ice age has often been attributed to the spread of early humans across the globe. Although overhunting led to the demise of some species, a…

‘Black dwarf supernova’: Physicist calculates when the last supernova ever will happen

Time and space abstract concept (stock image). Credit: © andrey_l / stock.adobe.com The end of the universe as we know it will not come with a bang. Most stars will very, very slowly fizzle as their temperatures fade to zero. "It will be a bit of a sad, lonely, cold place," said theoretical physicist Matt…

‘AeroNabs’ promise powerful, inhalable protection against COVID-19

Coronavirus illustration (stock image). Credit: © anthony / stock.adobe.com As the world awaits vaccines to bring the COVID-19 pandemic under control, UC San Francisco scientists have devised a novel approach to halting the spread of SARS-CoV-2, the virus that causes the disease. Led by UCSF graduate student Michael Schoof, a team of researchers engineered a…

Inexpensive, accessible device provides visual proof that masks block droplets

Person putting on face mask (stock image). Credit: © Tanakorn / stock.adobe.com Duke physician Eric Westman was one of the first champions of masking as a means to curtail the spread of coronavirus, working with a local non-profit to provide free masks to at-risk and under-served populations in the greater Durham community. But he needed…


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