Member Since 1995
David C. Catling
Professor, University of Washington Seattle
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Supercooling, Equilibrium and Kinetic Products of Enceladus-relevant Salt Solutions
ENCELADUS: FROM INNER WORKINGS TO THE POTENTIAL FOR LIFE II POSTER
planetary sciences | 14 december 2023
Fabian Klenner, Ardith Bravenec, Lucas Fifer, Bapt...
There are multiple lines of evidence for the existence of crystalline as well as glassy water ice on Saturns moon Enceladus, from both spacecraft obse...
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A new, climatic hypothesis for evolutionary stasis in the “boring billion”: Animals don’t like it hot
EVOLUTION OF TERRESTRIAL PLANETARY ATMOSPHERES: NOVEL TECHNIQUES AND NEW CONSTRAINTS WITH IMPLICATIONS FOR THE EARTH AND BEYOND POSTER
planetary sciences | 12 december 2023
David C. Catling, Nicholas Wogan, Kevin J. Zahnle
The interval ~1.8-0.8 Ga is called the boring billion (BB) because of relative stasis in geochemical signatures and a distinction from subsequent dram...
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Oxidation in ~1.4 Ga Iron-type fossil micrometeorites as a probe of coeval atmospheric composition
EVOLUTION OF TERRESTRIAL PLANETARY ATMOSPHERES: NOVEL TECHNIQUES AND NEW CONSTRAINTS WITH IMPLICATIONS FOR THE EARTH AND BEYOND POSTER
planetary sciences | 12 december 2023
Danqiu Chen, Roger Buick, Donald E. Brownlee, Jade...
Micrometeorites are relatively abundant on Earth because of continuous accumulation. During atmospheric entry at hypervelocity, micrometeorites can me...
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Origin of Life Molecules in the Atmosphere After Big Impacts on the Early Earth
EXPLORING THE INTERSECTION OF EARLY EARTH ENVIRONMENTS, PREBIOTIC CHEMISTRY, AND LIFE’S EMERGENCE I ORAL
planetary sciences | 11 december 2023
Nicholas Wogan, David C. Catling, Kevin J. Zahnle,...
While there are several theories for the origin of life, the presence of ribonucleic molecular fossils in modern biology has led to the RNA World hypo...
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Xenon Escape and the Properties of Earth's Archean Atmosphere
EXPLORING ARCHEAN EARTH TO UNDERSTAND ARCHEAN-LIKE EXOPLANETS POSTER
planetary sciences | 11 december 2023
Kevin J. Zahnle, David C. Catling, Marko Gacesa
Earth's atmospheric xenon is strongly mass fractionated, the result of a process that apparently began in the Hadean, continued through the Archean, a...
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Stratospheric Gas‐Phase Production Alone Cannot Explain Observations of Atmospheric Perchlorate on Earth
GEOPHYSICAL RESEARCH LETTERS
03 may 2023
Yuk Chun Chan, Lyatt Jaegle, Pedro Campuzano Jost,...
Perchlorate has been observed in many environments on Earth and Mars but its sources remain poorly quantified. In this study, we use a global three...
Minor Minerals Analyzed by PIXL – Major Insights into the Petrogenesis of Igneous Rocks in Jezero Crater from Phosphate and Fe-Ti-Cr Oxide Minerals
PERSEVERANCE AT JEZERO DELTA II POSTER
planetary sciences | 16 december 2022
Tanya Kizovski, Lauren O'Neil, Mariek E. Schmidt, ...
The Planetary Instrument for X-ray Lithochemistry (PIXL; an X-ray fluorescence [XRF] spectrometer on-board the Mars 2020 rover) has been used to produ...
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Predicting Water Content and Habitability of Perchlorate-rich Martian Soils
ACID BRINES AS POSSIBLE HABITABLE ENVIRONMENTS AND ORGANIC PRESERVATIVES: LOW WATER ACTIVITY NICHES I ONLINE SESSION
missions to mars: life detection and habitability | 20 may 2022
Andrew O. Shumway, David C. Catling, Jonathan D. T...
Life as we know it needs water to survive. On Mars, liquid water can form when salts in the soil absorb water vapor from the air and dissolve to form ...
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