Do you know that there are countless diamonds in space? Loads of tiny diamonds, each measuring less than one micrometer (much less than the width of a human hair) are located in the material that surrounds some stars--their circumstellar disks. Although circumstellar diamonds account for little of a disk's weight, their combined volume would be as large as part of a moon. Nevertheless, few stars have been identified which show clear evidence of diamonds in their disks. Why are only a small number of stars adorned by diamonds? How can we find more of them? Astronomers have been using the Subaru Telescope to seek the answers to these questions. They have learned that creating diamonds in space requires very special conditions.

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More info: Subaru telescope web page