A newly discovered alien planet that formed from a dead star is a real diamond in the rough.
The super-high pressure of the planet, which orbits a rapidly pulsing neutron star, has likely caused the carbon within it to crystallize into an actual diamond, a new study suggests.
The composition of the planet, which is about five times the size of Earth, is not its only outstanding feature. [Illustration of the diamond alien planet]
The planet's parent star is a special kind of flashing star known as a millisecond pulsar, a rapidly rotating neutron star formed from a supernova. The entire system, which is only the second of its kind ever discovered, is located about 4,000 light-years from Earth in the constellation of Serpens (The Snake).