Astronomers have proven that planets with a high carbon content contain a huge amount of diamonds. For their formation, one condition must be met, namely the presence of water for the beginning of the corresponding chemical reaction.
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The planet is made up of the same cloud of gas as its star. If the latter contains a small amount of oxygen and carbon, then a planet is formed, similar to the Earth, which includes silicates and oxides, and there are few – about 0.001% – diamonds in its interior. If a star contains more carbon and oxygen than the sun, the planet will also be rich in carbon. Moreover, it can contain a lot of diamonds and silica, but only in the presence of water.
Scientists have simulated conditions in the laboratory on one of these planets with extreme pressure and temperature. In the process, silicon carbide reacted with water and turned into diamonds. Due to the high content of methane and the low amount of oxygen in the atmosphere, these planets are hardly suitable for life.
Earlier, space blogger Vitaly Egorov said that the Earth could infect other planets of the solar system with life.