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240,755 articles from PhysOrg

Hubble focuses on large lenticular galaxy 1023

This new NASA Hubble Space Telescope image looks at one of the nearest, massive lenticular galaxies to Earth, NGC 1023 some 36 million light-years away. Lenticular galaxies get their names from their edge-on appearance that resembles a lens. They are intermediate galaxies between ellipticals and spirals. Lenticular galaxies have a large central bulge and a flattened disk like spirals, but no...

Engineers evaluate the factors affecting battery performance at low temperatures

Energy storage with rechargeable battery technologies powers our digital lifestyles and supports renewable energy integration into the power grid. However, battery function under cold conditions is an ongoing challenge, motivating researchers to improve low temperature performance of batteries. Aqueous batteries (in a liquid solution) do better than non-aqueous batteries in terms of rate...

Denying abortion access has a negative impact on children and families

The Roe vs. Wade Supreme Court proceedings in the United States have put the spotlight on the issue of abortion rights. Limiting access to safe abortions has many consequences, including increases in poverty, unemployment and pregnancy-related deaths. Another key area of impact from restricting abortion access is on family well-being and child development.

Function follows form in plant immunity

Scientists from the Max Planck Institute for Plant Breeding Research (MPIPZ) and the University of Cologne, Germany, have discovered a novel biochemical mechanism explaining how immune proteins defend plants against invading microorganisms. Their findings are published in the journal Cell.

A new tool to verify the geographical origins of virgin olive oil

Olive oil is one of the most prestigious agri-foods in Spain and it is the base of the Mediterranean diet. Adulteration and commercial fraud cases occur when it comes to the origin and varieties of a product with such an economic and business interest. Now, a team from the Faculty of Pharmacy and Food Sciences, Torribera Food and Nutrition Campus and the Institute for Nutrition and Food Safety...

Grim drought outlook for western US offers warnings for the future

Much of the western U.S. has been in the grip of an unrelenting drought since early 2020. The dryness has coincided with record-breaking wildfires, intense and long-lasting heat waves, low stream flows and dwindling water supplies in reservoirs that millions of people across the region rely on.

G20 failing to update carbon-cutting pledges: report

Nations in the G20 group of major economies have yet to strengthen greenhouse gas reduction goals despite agreeing to revisit their plans ahead of critical UN climate talks in November, according to an analysis by leading research NGOs seen exclusively by AFP.

Collaboration reveals interplay between charge order and superconductivity at nanoscale

High temperature superconductivity is something of a holy grail for researchers studying quantum materials. Superconductors, which conduct electricity without dissipating energy, promise to revolutionize our energy and telecommunication power systems. However, superconductors typically work at extremely low temperatures, requiring elaborate freezers or expensive coolants. For this reason,...

Electrons in a crystal found to exhibit linked and knotted quantum twists

As physicists delve deeper into the quantum realm, they are discovering an infinitesimally small world composed of a strange and surprising array of links, knots and winding. Some quantum materials exhibit magnetic whirls called skyrmions—unique configurations described as "subatomic hurricanes." Others host a form of superconductivity that twists into vortices.

A dazzling Hubble collection of supernova host galaxies

Spanning from 2003 to 2021, this collection of images from the NASA/ESA Hubble Space Telescope features galaxies that are all hosts to both Cepheid variables and supernovae. These two celestial phenomena are both crucial tools used by astronomers to determine astronomical distance, and have been used to refine our measurement of Hubble's constant, the expansion rate of the universe

Flow of liquid metals found to exhibit surprising turbulence

Some metals are in liquid form, the prime example being mercury. But there are also enormous quantities of liquid metal in the Earth's core, where temperatures are so high that part of the iron is molten and undergoes complex flows. A team at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) has now simulated a similar process in the laboratory and made a surprising discovery: Under certain...

What the new Jurassic Park movie gets wrong: Aerodynamic analysis causes a rethink of the biggest pterosaur

One of the most exciting moments of the new Jurassic Park sequel, "Jurassic World Dominion," is when the Quetzalcoatlus swoops down from the sky and attacks the heroes' aircraft. With its gigantic wings reaching 10 meters in length end to end, the Quetzalcoatlus was the largest pterosaur that ever existed. However, an aerodynamic analysis led by researchers from Nagoya University suggests that...

Music alleviates collective grief

In February 2020, a group of musicians from around the world living in China recorded their cover of a song by Michael Jackson on video to express their support to the families affected by the COVID-19 pandemic and to those working in the frontline. The video went viral. Now, in a study conducted by the Department of Psychiatry and Forensic Medicine and by the Institut de Neurociències (INc-UAB)...

Development of a potential super wheat for salty soils

Researchers at the University of Gothenburg have developed several new varieties of wheat that tolerate soils with higher salt concentrations. After having mutated a wheat variety from Bangladesh, they now have a wheat with seeds that weigh three times more and that germinate almost twice as often as the original variety.