Planet 55 Cancri e is composed primarily of carbon (in the form of diamonds and graphite), along with trace amounts of iron, silicon carbide, and maybe silicates. Therefore, it makes the formation of diamonds highly likely.
<h3>What is Planet 55 Cancri e ?</h3>
Exoplanet 55 Cancri e goes around its Sun-like host star 55 Cancri A. The mass of the exoplanet is about 8.63 Earth masses, and its diameter is about twice that of Earth. This makes it the first super-Earth found around a main sequence star, a year before Gliese 876 d.
Temperatures there are high enough to cause rocks to melt and vaporize, and it is possible that there are oceans of lava with clouds that rain molten rock.
Therefore, the two factors are presence of carbon and high temperatures.
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