Planet bling.

• Position: Astronomy - Pulsar J1719-1438 - Brief article

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It may be the most valuable spot in the Milky Way: a planet slightly bigger than Jupiter that an international team of astronomers think is made of diamond. Named pulsar J1719-1438, the planet seems to be a remnant of a really large old star made of a carbon so dense that scientists think it's crystalline--the same kind of tough carbon found in diamonds. The diamonds here on Earth formed over billions of years and are the hardest naturally occurring substance--which is part of what...