Phys.org news

Phys.org / One of industry's toughest lignin byproducts could become feedstock for valuable chemicals

The pulp and paper industry, which manufactures everything from tissue paper to cardboard, also generates a significant yet often overlooked byproduct—a complex polymer called lignin. Around 100 million tons of lignin are ...

2 hours ago
Phys.org / New twist on the Einstein problem reveals unexpected physics

A shape that captured worldwide attention for solving a decades-old mathematical puzzle has returned to the spotlight. While the shape's properties allowed it to solve previous puzzles, little is known about its other associated ...

16 hours ago
Phys.org / Little red dots may mark temporary black hole phase

Since their discovery by NASA's James Webb Space Telescope in 2022, little red dots (LRDs) have been the subject of great interest to astronomers. Understanding the nature of these extremely distant, compact red sources has ...

6 hours ago
Phys.org / The oceans near Australia may be the best places to fertilize for removing carbon dioxide

Deploying ocean iron fertilization—a strategy for carbon dioxide capture—in higher latitudes rather than near the equator could reduce environmental impacts while still achieving removal of carbon dioxide from the atmosphere, ...

4 hours ago
Phys.org / First electrically pumped perovskite polariton laser diode solves a decades-long challenge

Resolving a long-standing problem in semiconductor physics and optoelectronics, a team of researchers from Skoltech—a VEB.RF group institution—and their colleagues from ITMO University and HSE University have for the first ...

6 hours ago
Phys.org / Most complete skeleton of 30 million-year-old dog discovered

For decades, a 30 million-year-old fossil sat entombed in rock in an Oregon museum collection. When it was first found, paleontologists thought it might be an early relative of sheep, camels and pigs, whose fossilized skeletons ...

3 hours ago
Phys.org / Curiosity Mars rover discovers field of honeycomb textures

As NASA's Curiosity rover recently began climbing a Martian valley nicknamed "Valle Grande," it sent back images that were a familiar sight to mission scientists: honeycomb-like textures called polygonal fractures, each about ...

8 hours ago
Phys.org / Kitchen cling film helps build centimeter-scale ultrathin electronics and optics

As materials become thinner—now reaching the thickness of single atoms—it has become increasingly difficult to create sufficiently large sheets and transfer them without cracking them into tiny flakes. Recent work by a broad ...

6 hours ago
Phys.org / Unique fossil reveals the internal organs of a 245-million-year-old marine reptile

Scientists from China, Europe and the U.S., including Dr. Stephan Spiekman, a paleontologist at the State Museum of Natural History Stuttgart and the University of Hohenheim, have described a fossil of the long-necked marine ...

7 hours ago
Phys.org / Gonorrhea's own enzyme triggers therapy against multidrug-resistant strains in lab tests

Scientists at the Universities of Liverpool and Oxford have developed a promising new way to kill antibiotic-resistant strains of Neisseria gonorrhoeae, the bacterium that causes gonorrhea, using a targeted therapy that is ...

7 hours ago
Phys.org / Trees and microbes team up to improve nitrogen nutrient processes in higher CO₂ conditions

Forest trees growing in air containing higher levels of carbon dioxide (CO2) radically change the way they "cycle" nitrogen, a key plant nutrient, with implications for forests as a nature-based climate solution.

7 hours ago
Phys.org / Gold-MXene catalyst converts nitrate to ammonia using sunlight and 1.5 volts

Plants need nitrogen fertilizers, which are usually ammonia-based. Ammonia is therefore one of the most important chemical products. However, its production is currently extremely energy-intensive. An international team from ...

6 hours ago