Astronomers Discovered A Diamond Planet Twice The Size Of Earth

PSR J1719-1438 b, a planet orbiting a pulsar, is thought to be a remnant of a star whose outer layers were stripped away. Its extreme density suggests it's largely composed of crystalline carbon, or diamond, making it an incredibly valuable celestial body.

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https://www.nasa.gov/mission_pages/chandra/news/diamond_planet.html

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Published: March 29, 2026
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Unusual Space Astronomy Weird Exoplanet Diamond Planet Pulsar Space Exploration Carbon

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