a Carbon planet, a proposed planetary type that is actually black.
In August 2011, Matthew Bailes and his team of experts from Swinburne University of Technology in Australia reported that the millisecond pulsar PSR J1719-1438 may have a binary companion star that has been crushed into a much smaller planet made largely of solid diamond.
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Carbon planets might also be located near the galactic core or globular clusters orbiting the galaxy, where stars have a higher carbon-to-oxygen ratio than the Sun.
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