Results 131 to 140 of about 67,364 (304)

Origin of the non-carbonaceous–carbonaceous meteorite dichotomy

open access: yesEarth and Planetary Science Letters, 2019
J. Nanne, F. Nimmo, J. Cuzzi, T. Kleine
semanticscholar   +1 more source

2025 Jessberger Award to Prof. Vinciane Debaille

open access: yes
Meteoritics &Planetary Science, EarlyView.
Allan Treiman   +4 more
wiley   +1 more source

Rethinking “Prebiotic Chemistry”

open access: yesPerspectives of Earth and Space Scientists, Volume 6, Issue 1, December 2025.
Abstract In origins‐of‐life research, the term “prebiotic chemistry” is commonly used to describe processes thought to be related to or required for the emergence of life. However, it suffers from several potential drawbacks that have caused the present group of authors to rethink their usage of the term.
Michael L. Wong   +2 more
wiley   +1 more source

Ion Source Complementarity for Characterization of Complex Organic Mixtures Using Fourier Transform Mass Spectrometry: A Review

open access: yesMass Spectrometry Reviews, Volume 44, Issue 5, Page 808-829, September/October 2025.
ABSTRACT Complex organic mixtures are found in many areas of research, such as energy, environment, health, planetology, and cultural heritage, to name but a few. However, due to their complex chemical composition, which holds an extensive potential of information at the molecular level, their molecular characterization is challenging.
Charlotte Mase   +5 more
wiley   +1 more source

Detecting Biosignatures in Complex Molecular Mixtures From Pyrolysis‐Gas Chromatography‐Mass Spectrometry Data Using Machine Learning

open access: yesJournal of Geophysical Research: Machine Learning and Computation, Volume 2, Issue 3, September 2025.
Abstract Understanding how measured molecular signals can distinguish the chemistry of life from the chemistry of the nonliving world is a central focus of astrobiology and paleobiology. We train and compare several machine learning (ML) classification models on data from pyrolysis‐gas chromatography‐mass spectrometry (py‐GC‐MS)—a widely available ...
Grethe Hystad   +6 more
wiley   +1 more source

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