Chemistry

New measure, to take effect in 2018, relies on crystal that is free of impurities

The need for specially designed engines to run biodiesel is holding back the technology

The "other victims" of the opioid epidemic are pain patients who need the drugs but cannot now get them because of fears related to their use

Projects at the famed biologist’s lab include DNA data storage and resurrecting the woolly mammoth  

A slow-flowing project from Science Buddies

Wax moth larvae can consume and degrade polyethylene at an impressive rate

The U.S. Forest Service could begin using fire shelters made with NASA heat-shield technology as early as this summer 

A new nanoparticle coating technique prints text that lasts up to five days 

Recognition of the risks posed by UV rays has motivated scientists to study what’s going on in our cells when they’re in the sun—and devise modern ways to ward off that damage

A shiny new chemistry activity

Recipes for concrete that incorporate by-products from the coal and steel industries, like fly ash and slag, could reduce road salt–related cracking. Christopher Intagliata reports.

Volcanic springs and deep-ocean vents get new evidence