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    The Diamond Planet

    Tuesday, August 20, 2019 Last Updated 2019-10-24T13:46:25Z
    A planet fit for Oprah, or perhaps even Bill Gates. 55 Cancri e—made entirely out of crystallized diamond—would be priced at 26.9 nonillion dollars.

    That’s the kind of stuff that even the Sultan of Brunei dreams about at night.

    The huge diamond planet was once a star in a binary system, until its partner began to cannibalize it.

    However, the star was not able to pull its carbon core away, and carbon is just a ton of heat and pressure away from being a diamond—so at a surface temperature of 1648 degrees Celsius, the conditions are almost perfect.

    One third of the mass of the planet is said to be pure diamond, and whereas Earth is covered in water and abundant in oxygen, this planet is made mainly of graphite, diamond, and a few other silicates.

    The huge gemstone is two times the size of Earth, and has eight times the mass, making it a “Super-Earth.”


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