As the Earth started to grow, about 4.56 billion years ago, the heavy iron sank to the center, and the lighter silicates rose to the surface. Heat generated from impacts of other bodies kept the early Earth molten. In fact, the planet's entire outer layer may have been liquid, an idea that came from studying the Moon.
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The history of Earth concerns the development of planet Earth from its formation to the present day. Nearly all branches of natural science have contributed ...
Duration: 10:35
Posted: Jul 9, 2023
Posted: Jul 9, 2023
Jul 1, 2005 · The evolution of this planet and its atmosphere gave rise to life, which shaped Earth's subsequent development.
The Earth was formed about 4.6 billion years ago, that's 4,600,000,000 years ago. It was formed by collisions of particles in a large cloud of material. Slowly ...