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Member Since 1995
David C. Catling
Professor, University of Washington Seattle
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Simulated HWO Reflected Light Retrievals to Rule Out Waterworld O2
ABSCICON 2024
07 may 2025
Anna Grace Ulses, Joshua Krissansen-Totton, Victor...
The Astronomy & Astrophysics decadal survey recommended a telescope specifically designed to search for life on exoplanets. Called the Habitable World...
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Questioning the Reliability of Methane Detections on Mars by the Curiosity Rover
JOURNAL OF GEOPHYSICAL RESEARCH: PLANETS
13 april 2025
Sebastien Viscardy, David C. Catling, Kevin J. Zah...
Over the past decade, the Tunable Laser Spectrometer (TLS) on NASA's Curiosity rover has reported several detections of methane on Mars, attracting...
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...
Prebiotic Peptides Stabilize Prebiotic Vesicles, with Differential Effects Due to Sequence and Chirality: A Mechanism for Selection of the First Peptides and the Origin of Homochirality
EVOLUTIONARY CONSEQUENCES OF COMPARTMENTALIZATION DURING THE EMERGENCE OF LIFE II HYBRID ORAL
09 may 2024
Roy A. Black, Zachary Cohen, Zoe Todd, Lutz Maibau...
Cells require peptides (strings of amino acids) with specific sequences of amino acids, all of the same chirality (i.e. handedness) to carry out vital...
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Laboratory Experiments to Measure Gas Exsolution under Enceladus Plume Conditions
FROM SUBSURFACE TO SURFACE AND PLUME: HOW EJECTION AFFECTS ERUPTED MATERIAL ON ICY OCEAN WORLDS I POSTER
09 may 2024
Lucas Fifer, Jonathan D. Toner, Kendall Ford, Benj...
An ongoing eruption of ice and gas on the icy moon Enceladus likely originates from an ocean under the surface. The eruption can be readily analyzed b...
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