Scientists Crack Mystery Behind Large Slabs of the Earth's Crust That Went 'Missing' From Geological Records The Earth is no ...

This daily feast-and-famine cycle in oxygen availability created an intense physiological challenge for early animals, ...

Scientists reveal glaciers may have scraped away miles of Earth's crust during 'Snowball Earth,' erasing a billion years of ...

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Today, life on Earth depends on the availability of free oxygen, whether in the atmosphere, oceans or aquatic systems. However, oxygen concentrations were low and variable for most of the first ...

While scientists have long debated the causes behind the stepwise rise of oxygen, a new perspective ties the process to changes in Earth’s rotation. This insight suggests that the length of a ...

and an oxygen-rich atmosphere all help support life on Earth. Earth is also the only planet in our solar system known to have plate tectonics, or pieces of the crust that move around and smash ...

The Earth has a layered structure made up of the core, the mantle and the crust. Different elements are present in different parts of the Earth’s structure. The crust is made from enormous ...

Fossils can tell scientists what living things were around at different times in Earth’s history. Evidence of early plants can tell scientists how oxygen started to be added to the atmosphere ...

If liquid water and elevated crust existed so early in Earth’s history ... Phanerozoic atmospheric oxygen: New results using the GEOCARBSULF model. American Journal of Science 309, 603 ...

As Earth cools, a crust forms over it ... 3,700 mya: Photosynthesizing bacteria Early microbes thrive in an oxygen-free environment, feeding on organic molecules like glucose and producing ...