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Tuesday, December 6, 2016

The basis of life on Earth declared alien carbon


Carbon — the element that represents the basis of all organic molecules, and hence life, in which we can observe. However, in times when the Earth was just formed and was a glowing ball, carbon and other substances should disappear from the planet’s surface. American ocenyat the leadership of Rajdeep Dasgupta of Rician University made the assumption that the situation changed again after the collision of the Earth with the other protoplanets.


photo: pixabay.com

It is believed that the collision with the protoplanets in the distant past led to the fact that the Land is “split” fragment that later became the Moon. Taking this into account, scientists have suggested that carbon could have large quantities of it to appear on the Earth’s surface as a result of collision with the “germ” of the planet. The researchers conducted a series of experiments to find out what the consequences could fall on the “youngEarth protoplanet, sostavlu like mercury or Mars, but inferior to them in size.

As it turned out, such an event would significantly increase the carbon content on the surface and in the crust of our planet for two reasons. First, a considerable amount of this element would be contained on the surface of the space object that crashed into Earth. Second, the iron and silicon that make up the core of a hypothetical protoplanet, fell into the core of the Earth, “pushing” out of lighter elements such as carbon and sulfur. Together, these two factors would ensure the appearance on the earth’s surface sufficient amounts of the necessary for life materials, the researchers said

There are many theories about the “extraterrestrial” origin of another substance, without which the emergence of life would be unthinkable — water. Many experts suppose that it has been brought to the planet during meteorite “bombing”, held at the relatively early stages of formation of the Solar system 3.8 billion years ago. In the same way certain scientists are trying to explain the appearance of carbon, but the authors of a new study suggest that their hypothesis more convincing than the former.

The work of scientists published in the journal Nature Geoscience.

source

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