Astronomers have discovered a planet as dense as diamond roughly 4,000 light-years away from Earth .
( 4000 Light Years = 37842921890323200 KM )
National Geographic reports that the unusual planet was discovered orbiting what's called a millisecond pulsar — "a tiny, fast-spinning corpse of a massive star that died in a supernova" — and that the diamond planet itself may have once been a star.
The millisecond pulsar, called PSR J1719-1438, lies in the southern constellation Serpens, closer to the center of the Milky Way than Earth. Scientists estimate that the planet is 34,175 miles across, and five times Earth's diameter. The planet orbits the pulsar in just two hours and 10 minutes, covering a distance of 372,822 miles.


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