More information: Jinhyuk Choi et al, Oxidation of iron by giant impact and its implication on the formation of reduced atmosphere in the early Earth, Science Advances (2023). DOI: 10.1126/sciadv ...

A newly published study, based on analyses of ancient micrometeorites and a fresh round of computer modeling, estimates how high CO2 levels were in the early Earth's atmosphere.

Using the oldest fossil micrometeorites -- space dust -- ever found, new research has made a surprising discovery about the chemistry of Earth's atmosphere 2.7 billion years ago.

Simulations of reactions between 2.7-billion-year-old micrometeorites and atmospheric gases hint Archean Earth’s atmosphere had high levels of CO2.

More than 2 billion years ago, interactions of microbes and minerals acted in concert to increase oxygen in the Earth's atmosphere, new study suggests. Newsletters Games Share a News Tip Featured ...

The key to unlocking the secrets of distant planets starts right here on Earth. Researchers at Tohoku University, the University of Tokyo, and Hokkaido University have developed a model that considers ...

The first time oxygen was significantly present in the atmosphere was about 2.43 billion years ago, and this marks the start of the Great Oxidation Event -- a pivotal period in Earth's history.

Both Earth and Mars currently have oxidising atmospheres, which is why iron-rich materials in daily life develop rust (a common name for iron oxide) during the oxidation reaction of iron and oxygen.

The date of Earth’s first whiff of oxygen may have occurred 300 million to 400 million years earlier than scientists thought. According to an analysis of ancient sediment, hints of oxygen graced ...

But roughly 2.45 billion years ago, the isotopic ratio of sulfur transformed, indicating that for the first time oxygen was becoming a significant component of Earth's atmosphere, according to a ...