The cosmic diamond is a chunk of crystallised carbon, 4,000 km across, some 50 light-years from the Earth in the constellation Centaurus.
It's the compressed heart of an old star that was once bright like our Sun but has since faded and shrunk.
BBC NEWS | Science/Nature | Diamond star thrills astronomers
via: A Diamond Bigger than Earth Discovered in Constellation Centaurus | The Daily Galaxy: News from Planet Earth & BeyondTechnorati Tags:
