Science News

Alaska’s Islands of the Four Mountains could be single giant volcano

Aerial oblique photo of the volcanoes in the Islands of Four Mountains, Alaska. In the center is the summit of Mount Tana. Behind Tana are (left to right) Herbert, Cleveland, and Carlisle Volcanoes. USGS Photo by John Lyons, July 29, 2014.

A small group of volcanic islands in Alaska's Aleutian chain could actually be part of a single, previously unrecognized giant volcano in the same category as Yellowstone, according to work from a research team, including Carnegie’s Diana Roman, Lara Wagner, Hélène Le Mével, and Daniel Portner, as well as recently departed postdoc Helen Janiszewski (now at University of Hawaiʻi at Mānoa), who will present their findings at the American Geophysical Union’s Fall Meeting next week.

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Postdoc Spotlight: Daniel Portner's Tomographic Technique for Exploring Volcanic Systems

Postdoc Spotlight - Daniel Portner

recent study by Postdoctoral Fellow Daniel Portner harnesses a technique called tomographic inversion, normally used by doctors for CT scans, to create 3D images of these previously hidden inner structures. In this Postdoc Spotlight, Portner explains this new technique; what he found when he used it at the Cleveland Volcano; and how this study may raise more questions about the volcano than it answered. 

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Where Were Jupiter And Saturn Born?

Saturn

New work led by Carnegie’s Matt Clement reveals the likely original locations of Saturn and Jupiter. These findings refine our understanding of the forces that determined our Solar System’s unusual architecture, including the ejection of an additional planet between Saturn and Uranus, ensuring that only small, rocky planets, like Earth, formed inward of Jupiter.

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Interview with Alan Boss: Earth-Like Planets Even More Common Than We Thought

Interview with Alan Boss: Habitable Zone Planets More Common Than We Thought

Today, a NASA study published in The Astronomical Journal announced that between 37% and 88% of sun-like stars might have rocky worlds orbiting in their Habitable Zones (HZ). The team of scientists, which includes Carnegie Science Earth and Planets Laboratory (EPL) astrophysicist Alan Boss, looked at Kepler data from over 80,000 stars and determined that there is roughly one Earth-like planet for every two sun-like stars in our galactic neighborhood, a higher frequency than previously imagined.

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Deja Lu...nar? Why Does Water on the Moon Sound Familiar?

NASA illustration depicts water trapped in the lunar soil of the Moon's Clavius Crater and an image of NASA’s Stratospheric Observatory for Infrared Astronomy (SOFIA). Credits: NASA/Daniel Rutter

NASA kept the scientific community on the edge of its collective seat regarding “exciting news” about the Moon and speculation filled the Twitterverse for a week. But the big reveal may have left you with a sense of deja vu.  

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Postdoc Spotlight: Matt Clement Explains New Evidence for How Jupiter and Saturn Formed

Matt Clement Postdoc Spotlight Web Banner

Matt Clement is a Postdoctoral astronomer at the Earth & Planets Laboratory who uses computer modeling to piece together this complex story of how our early Solar System formed. As Clement puts it, trying to figure out what happened “is a bit like trying to understand how to make a smoothie only by tasting the final product.” 

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