OoL digest — edition 11

Time for a new OoL digest! This week we have stuff on astrobiology, biochemistry and information theory. In the astrobiology department, Yasui analyzes how impact heating influences organic material formation in asteroids, Famiano suggests a model for the origin of homochirality of amino acids in meteorites, Rosenthal presents the results of the California Legacy Survey on exoplanets around FGKM stars, Paradise analyzes the correlations between simulated exoplanet atmosphere spectra and the presence of liquid water on the surface, and Patty suggests spectropolarimetry as a way to detect alien life. In biochemistry, Guo suggests liquid-liquid non-associative phase separation as a possible compartmentalization mechanism, and Smith discusses the ambiguities between the biotic and the abiotic at the origin of life. Finally, I’ve included a podcast in which Sara I. Walker discusses the information theory of the origin of life. Happy reading!


Impacts may provide heat for aqueous alteration and organic solid formation on asteroid parent bodies – Yasui et al. – Communications Earth & Environment

Chiral Selection, Isotopic Abundance Shifts, and Autocatalysis of Meteoritic Amino Acids – Famiano et al. – preprint

The California Legacy Survey I. A Catalog of 177 Planets from Precision Radial Velocity Monitoring of 719 Nearby Stars over Three Decades – Rosenthal et al. – preprint

Fundamental Challenges to Remote Sensing of Exo-Earths – Paradise et al. – preprint

Biosignatures of the Earth I. Airborne spectropolarimetric detection of photosynthetic life – Patty et al. – preprint


Non-associative phase separation in an evaporating droplet as a model for prebiotic compartmentalization – Guo et al. – Nature Communications

The Grayness of the Origin of Life – Smith et al. – Life

Information Theory

The Information Theory of Biology & Origins of Life – Sara Imari Walker – Big Biology Podcast

Alexandre Champagne‑Ruel
Alexandre Champagne‑Ruel
PhD Candidate - Astrophysics

My research interests include statistical physics, complex systems and major evolutionary transitions.