A new study has suggested that the presence of diamonds deep beneath the Earth could explain why earthquakes occur at such depths, claiming that super-hot rocks release water that weakens surrounding rocks and triggers quakes. The study follows earlier hypotheses on superdeep earthquakes and explores whether water stored hundreds of kilometers below the Earth’s surface may be responsible for the... 

Recently, scientists from Bristol University (UK) and the Carnegie Institution (USA) found that virtually the entire globe is involved in the “production” of diamonds, except, perhaps, the nucleus. In a Brazilian mine minerals were discovered that appear to have formed at the depths of 400-660 kilometers from the surface of our planet.
 Even those who never touched a diamond know that... 

Twinkle, twinkle little star: The diamond planet - the shrunken core of a once-huge star - is a chunk of crystallised carbon measuring 40,000 miles across, five times the diameter of Earth. It is certainly what you could call a gem of a discovery. Astronomers believe they have found an entire planet made of diamonds. Scientists at the University of Manchester think they have unearthed a once-massive...