And in fact, before plants appeared on Earth, scientists think there was much more carbon dioxide but no oxygen in the early atmosphere. The composition of the atmosphere has changed over time ...

Scientists are unraveling the mysteries of Titan, Saturn’s largest moon, and its dense nitrogen-rich atmosphere. Despite its ...

We are pioneering a new field of study that will use micrometeorites, grains of cosmic dust, to investigate how the composition of Earth’s atmosphere has changed over time. We will use this novel ...

Are their atmospheres more like Neptune or like Earth? Is there a smooth transition from one type of planet to the other is there a more dominant unknown type of planet composition and structure we ...

The atmospheric formation of secondary pollutants such as ozone and aerosol and their influence on air quality and climate. Development and use of mass spectrometric and other methods for measurements ...

Atmospheric chemistry is the study of the components of planetary atmospheres, particularly that of the Earth. It specifically looks at the composition of planetary atmospheres and the reactions ...