Science News

Life on Venus? Six Carnegie Scientists Respond

Venus Header Banner

The September 2020 announcement that scientists found phosphine gas on Venus set off a buzz of excitement across the scientific world, leaving one question in the minds of many spectators: Did we just discover signs of life on Venus? Six Carnegie scientists respond. 

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Peculiar planetary system architecture around three Orion stars explained

New observations of GW Orionis, a triple star system with a peculiar inner region, revealed that this object has a warped planet-forming disk with a misaligned ring.

The discovery that our galaxy is teeming with exoplanets has also revealed the vast diversity of planetary systems out there and raised questions about the processes that shaped them. New work published in Science by an international team including Carnegie’s Jaehan Bae could explain the architecture of multi-star systems in which planets are separated by wide gaps and do not orbit on the same plane as their host star’s equatorial center.

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Probing the origin of the mantle’s chemically distinct “scars”

Basalt - Basalt, the most-common rock on Earth’s surface, encases green crystals--a geologic "nesting doll" phenomenon called a xenolith. Basalts such as this one derive from a section of the mantle that has been depleted in incompatible trace elements, w

 The composition of Earth’s mantle was shaped by interactions with the oceanic crust more than previously thought, according to work from Carnegie’s Jonathan Tucker and Peter van Keken along with colleagues from Oxford that was recently published in Geochemistry, Geophysics, Geosystems.

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How Datathons Drive New Understanding of Earth’s Evolution

Datathon

Connecting data sets and wading through the sea of information to tease apart patterns and relationships is a major challenge for modern geoscientists. That’s where “datathons” come in.

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Meteorite strikes may create unexpected form of silica

Crator in Arizona

When a meteorite hurtles through the atmosphere and crashes to Earth, how does its violent impact alter the minerals found at the landing site? What can the short-lived chemical phases created by these extreme impacts teach scientists about the minerals existing at the high-temperature and pressure conditions found deep inside the planet?

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95 Cool New Neighbors Discovered by Carnegie Alum and Citizen Scientists

White dwarf and its brown dwarf companion Credits: NOIRLab/NSF/AURA/P. Marenfeld/Acknowledgement: William Pendrill

Carnegie Alum Jackie Faherty was part of a team consisting of citizen scientists and professional astronomers that recently discovered 95 cool brown dwarfs close to our own Solar System. Faherty was a co-author on the resulting paper, which was recently published in The Astrophysical Journal. 

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