Another
planet has been discovered that apparently may be made of diamonds. It is called 55 Cancri e and is about double the size of the Earth but weighs about eight
times more. (…) The planet was found to be rich in carbon,
which might constitute about a third of its mass. It is also scalding hot, with a temperature
of 5,400 degrees Kelvin. One theory
postulates that the heat and pressure in the core may be extraordinary enough
to give rise to a diamond planet.
However, these glittering deposits, if they indeed exist, are forty
light-years from us, so mining them is beyond our current capabilities.
(from The Future
of Humanity by Michio Kaku)
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