A switch from predominantly undersea volcanoes to a mix of undersea and terrestrial ones shifted the Earth’s atmosphere from devoid of oxygen to one with free oxygen, according to geologists. “The ...

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 ...

When Earth evolved, it did not have the life-supporting oxygen that we breathe today. Researchers have now identified the ...

According to a study published in ACS Catalysis, a research team led by Prof. YAN Wensheng from the University of Science and Technology of China (USTC) has revealed the "volcano-type" relationship ...

A rapid increase in oxygen levels about 2.5 billion years ago was linked to the evolution of photosynthetic organisms, but geological factors likely started this process. Earth’s early atmosphere was ...

A complex web of interactions between geological features including volcanoes, subsurface mantle, oceans and the atmosphere created the chemical mixture necessary for early life to oxygenate our ...