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Global Model of Atmospheric Chlorate on Earth
JOURNAL OF GEOPHYSICAL RESEARCH: ATMOSPHERES
03 march 2025
Yuk Chun Chan, Lyatt Jaegle, Pedro Campuzano Jost,...
Naturally occurring chlorate (ClO3−) has been observed on Earth and potentially plays important roles in hydrology and mineralogy on Mars. Ho...
Excluding Waterworld O2 Biosignature False Positives via Land Detection with HWO
PLANETARY SCIENCE AND ASTROBIOLOGY WITH THE HABITABLE WORLDS OBSERVATORY II ORAL
planetary sciences | 13 december 2024
Anna Grace Ulses, Joshua Krissansen-Totton, Tyler ...
Biosignature searches with the Habitable Worlds Observatory (HWO) will require an understanding of how biosignature false positives that is non-biolo...
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Probable Concretions Observed in the Shenandoah Formation of Jezero Crater, Mars and Comparison With Terrestrial Analogs
JOURNAL OF GEOPHYSICAL RESEARCH: PLANETS
19 august 2024
Hemani Kalucha, Adrian P. Broz, Nicolas Randazzo, ...
The Mars 2020 Perseverance Rover imaged diagenetic textural features in four separate sedimentary units in its exploration of the 25‐m‐...
Astrobiological Potential of Rocks Acquired by the Perseverance Rover at a Sedimentary Fan Front in Jezero Crater, Mars
AGU ADVANCES
14 august 2024
Tanja Bosak, David L. Shuster, Eva L. Scheller, Sa...
The Perseverance rover has collected seven oriented samples of sedimentary rocks, all likely older than the oldest signs of widespread life on Eart...
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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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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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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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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