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The formation of the earth

Earth as a snowball. Illustration: depositphotos.com

Changes in the Earth's rotation axis may have encouraged the development of life

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Scientists from the University of Southampton in the United Kingdom have discovered that it is possible that changes in the Earth's rotation axis encouraged the development and prosperity of complex life despite the most extreme climate that has ever existed on Earth.
One of the 60 micrometeorites found in a 2.7 billion year old limestone from the Pilbara region of Western Australia. These micrometeorites are composed of iron oxides formed when meteoric iron dust particles oxidized as they traversed Earth's atmosphere, revealing that the upper atmosphere was surprisingly rich in oxygen.Credit: Andrew Tomkins

Cosmic dust has revealed Earth's ancient atmosphere

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The source of water in the oceans? Vapors emitted from Comet Churyumov Gersimenko in a Rosetta photograph. Photo: European Space Agency, ESA

Water from a comet or an asteroid?

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The farthest limit where the Earth's magnetic field has successfully repelled the solar wind. Source: Wikipedia.

Earth's ancient magnetic field and its effect on the atmosphere

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The oldest rocks on Earth have been found

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Asteroid impacts changed the face of Earth 3.2 billion years ago

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