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 ...

Researchers have discovered crucial new information about how microbes consume huge amounts of carbon monoxide (CO) and help reduce levels of this deadly gas.

Their extent of oxidation provides insights into the composition of the atmosphere at the time when they fell to Earth. In this case ~87 Million years ago. We are pioneering a new field of study that ...

He studied in some detail the composition of Jupiter's atmosphere by examining the absorption bands produced by methane at 619 nm and ammonia at 647 nm. The technique was all the more rewarding ...