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Articles sur Plate tectonics

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‘Earthrise,’ a photo of the Earth taken by Apollo 8 astronaut Bill Anders, Dec. 4, 1968. NASA/Bill Anders via Wikipedia

Will the Earth last forever?

The Earth isn’t permanent, but it was here for four billion years before humans arrived and should be here for several billion more.
An artist’s impression of the Earth around 2.7 billion years ago in the Archean Eon. With green iron-rich seas, an orange methane-rich atmosphere and a surface dominated by oceans, the Archean Earth would have been a very different place. (Illustration by Andrey Atuchin)

Where did the Earth’s oxygen come from? New study hints at an unexpected source

Could tectonic processes in the early Earth have contributed to the rise of oxygen?
Earth’s interior 80 million years ago with hot structures in yellow to red (darker is shallower) and cold structures in blue (darker is deeper). Ömer Bodur/Nature

Volcanoes, diamonds, and blobs: a billion-year history of Earth’s interior shows it’s more mobile than we thought

Ancient blobs deep inside the Earth gather together and break apart like continents, according to new research.
New research suggests that Venus’ crust is broken into large blocks – the dark reddish–purple areas – that are surrounded by belts of tectonic structures shown in lighter yellow–red. Paul K. Byrne/NASA/USGS

The surface of Venus is cracked and moves like ice floating on the ocean – likely due to tectonic activity

Researchers used decades-old radar data and found that some low-lying areas of Venus’ crust are moving and jostling. This evidence is some of the strongest yet of tectonic activity on Venus.

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