Science News

Prediction: More Gas-giants will be Found Orbiting Sun-like Stars

Alan Boss

New planetary formation models from DTM's Alan Boss indicate that there may be an undiscovered population of gas giant planets orbiting around Sun-like stars at distances similar to those of Jupiter and Saturn. His work is published by The Astrophysical Journal.

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Team Makes Planet Hunting a Group Effort, Finds More Than 100 Candidates

Hires

An international team of astronomers released the largest-ever compilation of exoplanet-detecting observations made using a technique called the radial velocity method. They demonstrated how these observations can be used to hunt for planets by detecting more than 100 potential exoplanets, including one orbiting the fourth-closest star to our own Solar System, which is about 8.1 light-years away from Earth.

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A New Study May Resolve a Long-Standing Puzzle about Meteoritic Stardust

Larry Nittler

A new measurement of an important nuclear reaction that occurs in intermediate-mass stars may have resolved a long-standing puzzle about meteoritic stardust, as reported in a new paper co-authored by Larry Nittler published in the new journal Nature Astronomy this week. 

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Peter Driscoll and Yingwei Fei Awarded 7th Carnegie Science Venture Grant

Z Machine

Peter Driscoll, a theoretical geophysicist at DTM, and Yingwei Fei, a high-pressure experimentalist at the Geophysical Laboratory, have been awarded a Carnegie Science Venture Grant for their project “Direct Shock Compression of Pre-synthesized Mantle Mineral to Super-Earth Interior Conditions.”

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

GMT

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.

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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.

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