OoL digest — August 29th edition

Quick one this week – only three articles. In Astrobiology, Madhusudhan investigates a new class of exoplanets with densities between that of rocky super-Earths and mini-Neptunes. In Earth Sciences, Meixnerová suggests that atmospheric oxygen concentration on early Earth would have followed a surge in marine microorganisms favored by volcanic eruptions, and Shizuya discusses the transition from Snowball Earth following the analysis of rock samples from China. Happy reading !


Habitability and Biosignatures of Hycean Worlds – Madhusudhan et al. – preprint

Earth Sciences

Mercury abundance and isotopic composition indicate subaerial volcanism prior to the end-Archean “whiff” of oxygen – Meixnerová et al. – preprint

Marine biomass changes during and after the Neoproterozoic Marinoan global glaciation – Shizuya et al. – Global and Planetary Change