] Astronomers announced Friday that a white dwarf star ] they've been studying is a chunk of crystallized carbon ] that weighs 5 million trillion trillion pounds. That's ] the same as a diamond that is approximately 10 billion ] trillion trillion carats, or a one followed by 34 zeros. ] ] "It's the mother of all diamonds," said astronomer Travis ] Metcalfe, Harvard-Smithsonian Center for Astrophysics. ] "Bill Gates and Donald Trump together couldn't begin to ] afford it." ] ] The object, a burned out corpse of a star named BPM ] 37093, is about 50 light-years from in the constellation ] Centaurus. It is a mere 2,500 miles wide. It's coated ] with a thin layer of hydrogen and helium. Astronomers had ] long suspected the interiors of white dwarfs ] crystallized, but only recently did they determine it to ] be so. The star pulsates like a giant gong, and the ] researchers studied those pulsations -- like seismic ] waves inside Earth -- to figure out the carbon interior ] was solidified. |