Chemistry
- Earth
Where the young hot Earth cached its gold
A simulation of the infant Earth provides a new view of how the iron-loving precious metals ended up buried deep in the planet’s core.
- Chemistry
FDA bans chemicals in antibacterial soaps
The U.S. Food and Drug Administration ruled against 19 antibacterial soap ingredients, citing insufficient evidence of bacteria-killing and safety problems.
- Chemistry
X-rays reveal portrait hiding beneath Degas masterpiece
X-ray technique reveals an additional painting hiding behind Edgar Degas’ "Portrait of a Woman."
- Chemistry
Vaping’s toxic vapors come mainly from e-liquid solvents
New study homes in on a primary source of toxic vaping compounds: the thermal breakdown of solvents used to dissolve flavorings in e-liquids. And older, dirtier e-cigs generate more of these toxicants, study shows.
- Earth
Iron-loving elements tell stories of Earth’s history
By studying geochemical footprints of rare elements, researchers get a glimpse of the planet’s evolution.
- Earth
Ancient air bubbles could revise history of Earth’s oxygen
Pockets of ancient air trapped in rock salt for around 815 million years suggest that oxygen was abundant well before the first animals appear in the fossil record.
- Chemistry
Nuclear bomb debris can reveal blast size, even decades later
Measuring the relative abundance of various elements in debris left over from nuclear bomb tests can reveal the energy released in the initial blast, researchers report.
- Earth
Winning helium hunt lifts hopes element not running out
A volcanic region of Tanzania contains more than a trillion liters of helium gas, enough to fill 1.2 million medical MRI scanners — or hundreds of billions of balloons, researchers report.
- Archaeology
Ancient Europeans may have been first wine makers
A new chemical analysis uncovers the earliest known wine making in Europe.
- Chemistry
Movie viewers’ exhaled chemicals tell if scene is funny, scary
Changes in trace gases exhaled by movie audiences could point the way to a subtle form of human communication.
- Chemistry
Four newest elements on periodic table get names
Four elements officially recognized in December, highlighted in yellow, now have names that honor Japan, Moscow, Tennessee and physicist Yuri Oganessian.
- Chemistry
Four newest elements on periodic table get names
Four elements officially recognized in December, highlighted in yellow, now have names that honor Japan, Moscow, Tennessee and physicist Yuri Oganessian.
