Atmospheric chemistry encompasses the study of the myriad reactions that take place in the gas phase of the Earth’s atmosphere, where reactive species—most notably radicals such as OH—play a central ...

Criegee intermediates are transient carbonyl oxide species generated during the ozonolysis of alkenes, and they play a pivotal role in atmospheric oxidation processes. Their formation initiates a ...

Nitrates in the atmosphere reduce air quality and play an important role in climate change. An international team led by Hokkaido University researchers has revealed how chemical processes in the ...

When astronomers pointed the James Webb Space Telescope (JWST) at a faint object orbiting a distant star system, they weren’t ...

Fionna Samuels Fionna Samuels is a physical sciences reporter at C&EN. Fionna joined the DC-based staff in 2024 after ...

An international study published in Atmospheric Chemistry and Physics reveals that the iron contained in aerosols undergoes significant dissolution during its transport over the Pacific. By analyzing ...

What can the atmosphere of a free-floating exoplanet teach astronomers about exoplanet formation and evolution? This is what a recent study published in The Astrophysical Journal Letters hopes to ...

What’s the first thing you do after waking up each morning, before you’ve even gotten out of bed? For many people, it’s checking the weather. For most, this is a thoughtless chore, an unexciting daily ...

May the faint chemical signals drifting through the atmosphere of a distant world be the long-sought message that we are not alone. Astronomers have reported seeing an unusual and strong combination ...

UW-Milwaukee’s Atmospheric Science program is a part of the School of Freshwater Sciences. The degree program will close at the end of this school year due to low enrollment and faculty retirements, ...