Uncategorized

Huge gamma-ray burst collection ‘rivals 250-year-old Messier catalog’

Hundreds of gamma-ray bursts (GRBs) have been recorded as part of an enormous global effort so extensive it ‘rivals the catalog of deep-sky objects created by Messier 250 years ago’, astronomers say. GRBs are the most violent explosions in the Universe, releasing more energy than the Sun would in 10 billion years. They occur when […]

Huge gamma-ray burst collection ‘rivals 250-year-old Messier catalog’ Read More »

Folded or cut, this lithium-sulfur battery keeps going

Most rechargeable batteries that power portable devices, such as toys, handheld vacuums and e-bikes, use lithium-ion technology. But these batteries can have short lifetimes and may catch fire when damaged. To address stability and safety issues, researchers have designed a lithium-sulfur (Li-S) battery that features an improved iron sulfide cathode. One prototype remains highly stable

Folded or cut, this lithium-sulfur battery keeps going Read More »

Enzyme-inspired catalyst puts chemicals in right position to make ethers

Taking inspiration from enzymes, chemists have developed a catalyst to simplify the synthesis of ethers, key functional components of many drugs, foods, personal care items and other consumer goods. The catalyst puts the two chemical ingredients in just the right proximity and position to come together, bypassing the need for the steps and quantities required

Enzyme-inspired catalyst puts chemicals in right position to make ethers Read More »