217 citations · 332 across the 8 of their papers we have counts for
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Prebiotic Chemistry Insights for Dragonfly II: Thermodynamic Favorability of Nucleobases, Ribose, and Fatty Acids in Selk Crater on Titan
Ishaan Madan, Ben K. D. Pearce
Saturn's moon Titan is a prime destination for investigating prebiotic chemistry beyond Earth, particularly at impact crater sites where transient liquid water may have enabled aqu…
Prebiotic Chemistry Insights for Dragonfly: Thermodynamics of Amino Acid Synthesis in Selk Crater on Titan
Ishaan Madan, Ben K. D. Pearce
Saturnian moon Titan presents a compelling testbed for probing prebiotic chemistry beyond early Earth. Impact-generated melt pools provide transient aqueous habitats in an otherwis…
Deep Mantle-Atmosphere Coupling and Carbonaceous Bombardment: Options for Biomolecule Formation on an Oxidized Early Earth
Klaus Paschek, Thomas K. Henning, Karan Molaverdikhani +4
Understanding what environmental conditions prevailed on early Earth during the Hadean eon, and how this set the stage for the origins of life, remains a challenge. Geologic proces…
An experimental and theoretical investigation of HCN production in the Hadean Earth atmosphere
Ben K. D. Pearce, Chao He, Sarah M. Hörst
A critical early stage for the origin of life on Earth may have involved the production of hydrogen cyanide (HCN) in a reducing, predominantly H atmosphere. HCN is crucial for…
A Consistent Reduced Network for HCN Chemistry in Early Earth and Titan Atmospheres: Quantum Calculations of Reaction Rate Coefficients
Ben K. D. Pearce, Paul W. Ayers, Ralph E. Pudritz
HCN is a key ingredient for synthesizing biomolecules such as nucleobases and amino acids. We calculate 42 reaction rate coefficients directly involved with or in competition with…
Constraining the Time Interval for the Origin of Life on Earth
Ben K. D. Pearce, Andrew S. Tupper, Ralph E. Pudritz +1
Estimates of the time at which life arose on Earth make use of two types of evidence. First, astrophysical and geophysical studies provide a timescale for the formation of Earth an…