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Study: Giant Super-Earths Made of Diamond Are Possible

By Guest PostDecember 8, 2011Scienceatmosphere, carbon, carbon rich planets, carbon super earths, diamond planet, diamonds, earth, jason kabbes, jennifer johnson, lower mantle, magnetic field, mantle, Milky Way, ohio state university, oxygen, planet, san francisco, silica based minerals, solar systems, stars, wendy panero

SAN FRANCISCO – A planet made of diamonds may sound lovely, but you wouldn’t want to live there.

A new study suggests that some stars in the Milky Way could harbor “carbon super-Earths” – giant terrestrial planets that contain up to 50 percent diamond.

But if they exist, those planets are likely devoid of life as we know it. (more…)

Arctic Rocks Offer New Glimpse of Primitive Earth

By Guest PostAugust 16, 2010Sciencebaffin island, baffin island lavas, baffin island rocks, canadian arctic, carnegie institution, don francis, earth, geochemical evidence, helium-3, helium-4, mantle, matthew jackson, new window, radioactive, reservoir, richard carlson, thorium, uranium

Scientists have discovered a new window into the Earth’s violent past. Geochemical evidence from volcanic rocks collected on Baffin Island in the Canadian Arctic suggests that beneath it lies a region of the Earth’s mantle that has largely escaped the billions of years of melting and geological churning that has affected the rest of the planet. Researchers believe the discovery offers clues to the early chemical evolution of the Earth.

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Tag Archives: mantle

Study: Giant Super-Earths Made of Diamond Are Possible

Arctic Rocks Offer New Glimpse of Primitive Earth