377 results
- Planetary Science
Competing ideas abound for how Earth got its moon
The moon may have formed from one giant impact or from about 20 small ones.
- Chemistry
New molecular knot is most complex yet
The knot is woven from 192 atoms of carbon, hydrogen, oxygen and nitrogen and forms a triple braid with eight crossing points.
- Chemistry
Enzyme forges carbon-silicon bonds with a little human help
A few tweaks to an enzyme help it link carbon to silicon — a match not found in nature.
- Life
Early RNA may have used isolation strategy to defeat useless mutants
Temporary barriers help RNA escape shorter, faster-replicating parasites
- Chemistry
New, greener catalysts are built for speed
Researchers are designing catalysts to move chemical reactions without using precious metals, or at least using less of them.
- Climate
Wanted: New ways to chill air conditioners, fridges
A new amendment to the Montreal Protocol will phase out potent greenhouse gases currently used in air conditioners and refrigerators, prompting a hunt for eco-friendly alternatives.
- 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.
- Chemistry
Better batteries charge forward
Next-generation batteries must hold more energy for longer periods at low cost. Several contenders may achieve some of these elusive goals.
- Materials Science
Qian Chen makes matter come alive
Materials scientist Qian Chen is coaxing nanomaterials to self-assemble in new and unexpected ways.
- 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.
- 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.
