The Diamond Planet.

Techniche, IIT Guwahati
3 min readApr 21, 2023

Diamonds are one of the most precious and beautiful gems on Earth, cherished for their stunning sparkle and symbolic significance. But did you know that there might be an entire planet made of diamonds? Yes, you heard it right! Scientists have discovered a fascinating celestial body that is believed to be composed largely of diamonds, captivating the imagination of astronomers and space enthusiasts alike. In this blog, we will delve into the intriguing world of the diamond planet, exploring its discovery, composition, and potential implications for our understanding of the universe.

The diamond planet, officially known as PSR J1719–1438 b, was first discovered in 2011 by a team of astronomers led by Dr. Matthew Bailes at Swinburne University of Technology in Australia. It is located about 4,000 light-years away from Earth, in the constellation Serpens, and orbits a rapidly spinning neutron star, also known as a pulsar. Neutron stars are incredibly dense and compact remnants of massive stars that have gone supernova, and they have extremely strong magnetic fields and rotate rapidly, emitting regular pulses of radiation.

The discovery of the diamond planet was made using a technique called pulsar timing, where astronomers measure the precise timing of the pulsar’s radio pulses to detect any variations caused by the gravitational pull of an orbiting planet. The variations in the pulsar’s pulses indicated the presence of a massive planet, estimated to be about five times the size of Earth, but with a mass that is about 1.4 times that of Jupiter, the largest planet in our solar system.

One of the most intriguing aspects of the diamond planet is its composition. Based on the pulsar’s radio pulses, astronomers believe that the planet is largely composed of carbon, the same element that makes up diamonds on Earth. However, the conditions on the diamond planet are vastly different from those on our planet, with extreme temperatures and pressures that would transform carbon into a crystalline form, creating a diamond-like structure.

The diamond planet is estimated to have a core made of solid diamond, with a mass that is several times greater than the entire Earth’s mass. The intense gravitational pull of the pulsar is believed to have stripped away the planet’s outer layers, leaving behind a dense, diamond-rich core. The surface of the planet is believed to be covered in a layer of hot, dense gas, composed of hydrogen and helium, with temperatures reaching thousands of degrees Celsius. Spellbounding right?

It is no less of a surprise that the discovery of the diamond planet has sparked excitement among astronomers and has potential implications for our understanding of the universe. Firstly, it provides a unique opportunity to study the extreme conditions that exist on this celestial body, with temperatures and pressures that are unlike anything we can find on Earth. This could shed light on the physical properties of materials under such extreme conditions and expand our knowledge of the behavior of matter in the universe.

Moreover, the discovery of the diamond planet raises questions about how such a planet could have formed. Current theories of planet formation suggest that planets are formed from the dust and gas left over after the formation of a star, but it is unclear how a planet composed mostly of carbon, with a diamond-like structure, could have formed in such a system. Further research and study of the diamond planet could provide valuable insights into the processes and mechanisms involved in planet formation in diverse environments.

The diamond planet also serves as a reminder of the vast diversity and wonders of the universe. Just as diamonds are formed under immense pressure and heat deep within the Earth’s crust, the diamond planet showcases the incredible variety of celestial bodies that can exist in the cosmos, each with its own unique composition, structure, and properties.



Techniche, IIT Guwahati

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