Phys.org news
Phys.org / Deep-sea crust uncovers steady plutonium rain from ancient kilonova debris
Debris is still raining down on Earth more than 100 million years after the giant cosmic explosion that created it. A study published this week in Nature Astronomy by an international team reached this conclusion using measurements ...
Phys.org / A star's death throes involve a lot of kicking
When stars like our sun age, they puff up into red giants. Their bubbling outer mass gradually escapes into space, and their remaining cores contract into white dwarfs. Since most stars end their lives this way, the universe ...
Phys.org / Beyond frozen snapshots, protein 'breathing' comes into view with combined imaging methods
Advances in structural biology have allowed scientists to determine molecular structures with atomic-level detail, sometimes yielding static snapshots that do not reflect the dynamism of proteins. However, these motions are ...
Phys.org / Plants reveal backup system for sensing and adapting to rising temperatures
University of Mississippi researchers are studying how plants respond to heat at the molecular level, an important consideration for farmers, businesses and policymakers as global temperatures rise.
Phys.org / Chandra reveals flickering supernova remnants in M83 over 14 years
The aftermath of a supernova, a stellar explosion, is usually a slowly fading cloud of hot gas. So when astronomers pointed NASA's Chandra X-ray Observatory at the nearby galaxy Messier 83 (M83), they did not expect to find ...
Phys.org / Only 10 viral particles cause H5N1 avian flu infection in cows
Just 10 viral particles of the H5N1 bird flu that caused hundreds of influenza outbreaks in U.S. dairy cattle can cause infection in cows, a new study shows. The research also hints at why the outbreaks have confounded scientists, ...
Phys.org / Quasi-1D material unlocks electric control of charge waves beyond standard limits
The ability to control the movement of negatively charged particles (i.e., electrons) is central to the functioning of all modern electronic devices. This control is typically attained using a gate, an electrode via which ...
Phys.org / Deep Earth model traces 270 million years of seamount formation across oceans
Over 40,000 seamounts—undersea mountains that don't breach the ocean's surface—are scattered across the ocean floor. Some form linear chains, while others occur as dispersed, isolated features that are not part of well-defined ...
Phys.org / Most precise measurement of the force that binds nuclear matter achieved
Trinity's Prof. Stefan Sint, along with collaborators from Germany, Spain and Italy, has published the most precise determination to date of the strong coupling constant. This parameter governs the interactions between quarks ...
Phys.org / Benzene reaction may explain how DNA and RNA building blocks formed on early Earth
Caltech researchers have identified a novel chemical reaction that could explain the formation of the building blocks of DNA and RNA, the molecules that encode all of life's functions. The work is an important step toward ...
Phys.org / Climate change reshapes Spain's rockfall risk as frost weathering moves uphill
Climate change is altering where and when rocks are most likely to fracture across Spain, according to new research that suggests warming temperatures are redistributing a key process responsible for breaking down mountain ...
Phys.org / Why Arctic sea ice loss could reshape the Gulf Stream's future
The warm Gulf Stream is maintained by coldness. The Barents Sea is a cooling machine. To predict how ocean currents in the Atlantic Ocean may develop, one needs to know what drives them. The hunt for driving forces has led ...
