Evolutionary changes in a key protein synthesis enzyme, isoleucyl-tRNA synthetase (IleRS), may help bacteria fine-tune how quickly proteins are made, report researchers from Institute of Science Tokyo, Japan; the University ...
Proteins perform essential functions in living organisms, from catalyzing biochemical reactions to supporting cellular energy metabolism. Their functions depend on their amino acid composition and three-dimensional structures. ...
A cosmic explosion that announced itself with a modest flash of gamma rays went on to produce one of the brightest afterglows astronomers have recorded in the past 20 years. An international team of astronomers now finds ...
Ocean fish stocks have been increasingly exploited over time, and remote sensing shows they have declined in the open ocean over the last three decades, particularly in the tropics. But it's uncertain how fish populations ...
Chemical reactions have their own "impatient molecules." Unable to stay still even for a moment, they latch onto other molecules indiscriminately. Researchers have now found that even these molecules change where they "sit" ...
Making complex molecules often means joining smaller chemical building blocks together, a process facilitated by catalysts, compounds that make such reactions possible or speed them up without being consumed themselves. Many ...
Over 1,645 Martian days, NASA's Perseverance Mars rover measured the fine and ultrafine Martian dust particles found clinging to samples of spacesuit materials that are carried aboard the rover, including particles small ...
Generating hydrogen without releasing carbon dioxide sounds simple: pass electricity through water, split water molecules and generate green hydrogen. The hard part is the electrocatalyst. The best ones rely on platinum, ...
An international research team from Germany, Switzerland and Japan has demonstrated in a recent study that a single reflection zone plate (RZP) can perform both soft X-ray imaging and resonant inelastic X-ray scattering (RIXS) ...
From its visible surface, the sun radiates heat at a relatively cool temperature of 5,800 Kelvin. Yet within the thin outer layer of the sun's atmosphere known as the corona, electrons can reach temperatures of millions of ...
