Science News

Robert N. Shelton Selected as President of Giant Magellan Telescope Organization


The Giant Magellan Telescope Organization (GMTO) announces the appointment of physicist Robert N. Shelton to become its president, effective February 20, 2017. Shelton will lead the organization in the development of the 24.5-meter Giant Magellan Telescope (GMT), which is poised to be the world’s largest astronomical telescope when operational in the next decade.  Shelton will work closely with the GMTO Board of Directors, the leadership at the partner institutions, and the GMT team to complete construction of the observatory.


Deep Mantle Chemistry Surprise: Carbon Content Not Uniform

Marion le Voyer

Even though carbon is one of the most abundant elements on Earth, it is actually very difficult to determine how much of it exists below the surface in Earth’s interior. Analysis by Carnegie’s Marion Le Voyer and Erik Hauri of crystals containing completely enclosed mantle magma with its original carbon content preserved has doubled the world’s known finds of mantle carbon. The findings are published in Nature Communications.


Biggest and best diamonds formed in deep mantle metallic liquid

Steven Shirey

New research from a team including Carnegie’s Steven Shirey, Jianhua Wang, and Emma Bullock explains how the world’s biggest and most valuable diamonds formed—from metallic liquid deep inside Earth’s mantle. The findings are published in Science.