Find in asteroid crater likely illuminates beginning of Great Oxygenation Event

Traces of microorganisms were found in a crater in South Korea. Billions of years ago, they may have triggered the Great ...
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Oxygen overshot on Earth 2.3bn years ago, and that should have killed some. They are still here

Earth witnessed the Great Oxygenation Event around 2.3 billion years ago, boosting oxygen levels that allowed new life forms to take root. Before this, oxygen levels on our planet were on a much lower ...
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Japan's hot springs reveal how Earth's organisms survived the 'Great Oxidation Event' 2.3 billion years ago: Study

Japan's hot springs reveal how Earth's organisms survived the 'Great Oxidation Event' 2.3 billion years ago: Study A team from the Earth-Life Science Institute in Tokyo analyzed certain hot springs in ...
AOL

These Lifeforms Should Have Died 2.3 Billion Years Ago. They’re Still Alive in Japan.

In Earth’s earliest days, oxygen levels were on the order of a million times lower than they are now. The spike in oxygen known as the Great Oxygenation Event (which occurred around 2.3 billion years ...
EurekAlert!

Drilling deep to study the oxygenation of Earth

Some 2.3 to 2.4 billion years ago, Earth underwent a monumental transformation that forever altered the planet’s course. Cyanobacteria evolved a new kind of photosynthesis that unleashed tremendous ...
Science Daily

Are volcanoes behind the oxygen we breathe?

It is widely believed that Earth's atmosphere has been rich in oxygen for about 2.5 billion years due to a relatively rapid increase in microorganisms capable of performing photosynthesis. Researchers ...
Nature

Early Earth’s oxygenation

The Great Oxidation Event (GOE) at ~2.4–2.3 Ga and the Neoproterozoic Oxidation Event (NOE) at ~0.8–0.54 Ga, were transformative events that catalyzed the development of global geological, geochemical ...