Outside the earth, diamonds are also common. A recent discovery shows that some stars collapse on themselves, creating giant diamond crystals. In the constellation Centaurus, there lies a white dwarf, that has crystallized into a diamond 2,500 miles in diameter and weighing 10 billion, trillion, trillion carats.
|An artist's impression of the white dwarf star orbiting with the pulsar PSR J2222-0137. Credit: B. Saxton (NRAO/AUI/NSF)|