Science News

Elucidating how asymmetry confers chemical properties

Stock image of the transition metals section of the periodic table

New research by Carnegie’s Olivier Gagné and collaborator Frank Hawthorne of the University of Manitoba categorizes the causes of structural asymmetry, some surprising, which underpin useful properties of crystals, including ferroelectricity, photoluminescence, and photovoltaic ability. Their findings are published this week as a lead article in the International Union of Crystallography Journal.

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Most Of Earth’s Carbon Was Hidden In The Core During Its Formative Years

Comparing carbon's compatibility with the silicates that comprise the Earth’s mantle (outer circle) to its compatibility with the iron that comprises the planet’s core (inner circle)

New work published this week in Proceedings of the National Academy of Sciences reveals how carbon behaved during Earth’s violent formative period. The findings can help scientists understand how much carbon likely exists in the planet’s core and the contributions it could make to the chemical and dynamic activity occurring there—including to the convective motion powering the magnetic field that protects Earth from cosmic radiation.

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Peeking at the plumbing of one of the Aleutian's most-active volcanoes

Carnegie’s Diana Roman collecting samples from Alaska’s Cleveland volcano, one of the most-active volcanoes in the Aleutians.  Tana Volcano on Chuginadak Island isn in the background. Photo is courtesy of Anna Barth of Lamont Doherty Earth Observatory.

A new approach to analyzing seismic data reveals deep vertical zones of low seismic velocity in the plumbing system underlying Alaska’s Cleveland volcano, one of the most-active of the more than 70 Aleutian volcanoes. The findings are published in Scientific Reports by Helen Janiszewski, recently of Carnegie, now at the University of Hawaiʻi at Mānoa, and Carnegie’s Lara Wagner and Diana Roman. 

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Gas Around Young Star Indicate Early Stages of Planet Formation

Cascades of Gas

What does a gestating baby planet look like? New research in Nature by a team including Carnegie’s Jaehan Bae investigated the effects of three planets in the process of forming around a young star, revealing the source of their atmospheres.

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Twenty New Moons Found Orbiting Saturn

New Moons of Saturn

A team led by Carnegie's Scott S. Sheppard has found 20 new moons orbiting Saturn.  This brings the ringed planet’s total number of moons to 82, surpassing Jupiter, which has 79. The discovery was announced Monday by the International Astronomical Union’s Minor Planet Center.

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