Astrobiology9- Page

Keith Cowing Explorers Club Fellow, ex-NASA Space Station Payload manager/space biologist, Away Teams, Journalist, Lapsed climber, Synaesthete, Na’Vi-Jedi-Freman-Buddhist-mix, ASL, Devon Island and Everest Base Camp veteran, (he/him) 🖖🏻 Follow on

Dale Andersen in an ice hole preparing to dive in Lake Untersee, Antarctica in February 2026 — Alessandro Cuzzeri Hi Keith, The team and I have been home for about

Qualitative projections of the best-fit three-dimensional spherical-harmonic model to the jointly decomposed first spatial mode, u(1), derived from three viewing geometries of Europa’s leading hemisphere. (e) Water-ice 3.1 µm Fresnel

A Representation of two possible evolution models of the RNA replication system containing two replicases and two parasites. B Illustration of the deterministic assumptions. C Transient compartmentalization with pooling (homogeneous

Comparison of various tracers of dust, gas, and extinction toward the CygX region. Cyan contours in all images indicate H2O ice peak optical depths of 0.25, derived from the H2O

Velocity and line-width residuals derived from discminer models applied to synthetic observations of planet-disc interaction (q = 2 × 10−3 , ϕp = −45◦ ) and disc instabilities. Details of

Life-friendly moon — A realistic depiction of a free-floating gas giant planet and its Earth-like moon © Dahlbüdding/DALL-E Liquid water is considered essential for life. Surprisingly, however, stable conditions that

Microscope images of Ryugu samples collected from the first and second landing sites of the Hayabusa2 mission, respectively. Credit: Jaxa/Jamstec Samples from the asteroid Ryugu collected and returned to Earth

The astrometric and RV signals of Earth analogs orbiting nearby stars are small and below the current state of the art, while the astrometric signals of such planets are positively

ASGSR 2025 The American Society for Gravitational and Space Research (ASGSR) plays an important role in connecting the gravitational and space research community through its annual scientific meeting, advocacy efforts,