Carnegie Institution for Science

Probing iron chemistry in the deep mantle

Carbonates are a group of minerals that contain the carbonate ion (CO32-) and a metal, such as iron or magnesium. Carbonates are important constituents of marine sediments and are heavily involved in the planet's deep carbon ...

dateMay 15, 2015 in Earth Sciences
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From metal to insulator and back again

New work from Carnegie's Russell Hemley and Ivan Naumov hones in on the physics underlying the recently discovered fact that some metals stop being metallic under pressure. Their work is published in Physical Review Letters.

dateApr 22, 2015 in Condensed Matter
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Hormones that guide root growth rates revealed

A plant's roots grow and spread into the soil, taking up necessary water and minerals. The tip of a plant's root is a place of active cell division followed by cell elongation, with different zones dedicated to different ...

dateApr 09, 2015 in Biotechnology
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Chemical fingerprints of ancient supernovae found

A Carnegie-based search of nearby galaxies for their oldest stars has uncovered two stars in the Sculptor dwarf galaxy that were born shortly after the galaxy formed, approximately 13 billion years ago. The unusual chemical ...

dateMar 23, 2015 in Astronomy
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