OoL digest — January 11th edition

Big week in ool research: we have eight papers in astrobiology, biochemistry and planetary science. In astrobiology, Franz discusses the Breakthrough Listen Initiative – a technosignature search for TESS TOIs, Fujiya reports the radiometric age of a C-complex asteroid with implications on their occurrence, Pearce presents a chemical model of early Earth atmosphere and discusses the rain-out of HCN and its implications for the warm little ponds hypothesis, and Svensmark discusses supernovae frequency and distribution of organic matter. In biochemistry Pan reviews the relevance of viruses for ool scenarios and Heili reports experiments on cellular export of functional protein and RNA products. Finally, in planetary science Slotznick reexamines a transient pre-GEO oxygenation event and Cooke uses a three-dimensional chemistry-climate model to simulate changes in $O_3$ since the GOE, with implications for terrestrial habitability. Enjoy!

Astrobiology

The Breakthrough Listen Search for Intelligent Life: Technosignature Search of Transiting TESS Targets of Interest – Franz et al. – preprint

Hydrothermal activities on C-complex asteroids induced by radioactivity – Fujiya et al. – preprint

Towards RNA life on Early Earth: From atmospheric HCN to biomolecule production in warm little ponds – Pearce et al. – preprint

Supernova Rates and Burial of Organic Matter – Svensmark – Geophysical Research Letters


Biochemistry

Controlled exchange of protein and nucleic acid signals from and between synthetic minimal cells – Heili et al. – preprint

Virus Origins and the Origin of Life – Pan – book chapter


Planetary Science

A revised lower estimate of ozone columns during Earth’s oxygenated history – Cooke et al. – Royal Society Open Science

Reexamination of 2.5-Ga “whiff” of oxygen interval points to anoxic ocean before GOE – Slotznick et al. – Science Advances

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

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