Scientists have hypothesized that carbon-rich planets could be made up of diamonds as well as silica. The corresponding conclusions were made based on the results of a study by a team of specialists from the USA.
Exoplanets rotate around stars, where the ratio of carbon to oxygen is higher than in the case of the Sun. There is a possibility that they are rich in C. Based on this, astronomers have put forward a theory according to which, against the background of chemical reactions, such exoplanets can be composed of diamond and silica. In the hope of testing the hunch, scientists in a laboratory set up a simulation of the chemical stop of celestial bodies, which was achieved by using high heat and pressure. The process involved cells with diamond anvils.
It turned out that under these conditions, silicon carbide reacts with water, transforming into diamonds and silica. The work shows that in the case of the presence of water on the planets, the mentioned reactions could be observed. As for the habitability of such exoplanets, it is unlikely that there exist conditions suitable for the development of life.