Astrobiology69- Page

Graphical abstract — astro-ph.GA The interplay between radiation chemistry and sublimation dynamics of condensed organic compounds on cold grains is fundamental to describe observed gas-phase and ice-phase molecular abundances in

Map showing water percolation rates on Mars billions of years ago according to research from UT Jackson School of Geosciences. Surface water sinking through the Martian soil took between 50

Yield simulations for transiting planets and asteroseismology using the recommended survey designs. Left: Transiting exoplanet yield relative to the nominal survey as a function of planet radius (x-axis) and host

Summary of permeability selection results for the archaeal and hybrid membranes. Credit Goode O, et al., 2025, PLOS Biology, CC-BY 4.0 How life arose remains a looming question in science

Representation of a newly discovered nitrogen-oxygen-sulphur, known as NOS, link (blue: nitrogen, red: oxygen, yellow: sulphur) between the amino acids glycine and cysteine within an enzyme – Credit Sophia Bazzi

Brightness temperature for the four composition scenarios and each model. Brightness temperature can be directly compared with observations but also is an indicator of numerical behavior, when simulated. As an

A top-down view of the TOI-2285 system architecture, where the scale of the figure is shown along each axis. The CHZ is shown in light green, the OHZ extensions to

(top) The JWST spectrum of Cha 1107-7626 taken with NIRSpec-PRISM (green) and MIRI-LRS (blue). Overplotted are the ISPI and Spitzer photometric points from Luhman et al. (2008). (bottom) The spectral

Mass of surface water in the collapsed state as a function of the stellar flux S∗ and the background surface pressure pdry (A), and a function of S∗ and the

One of the navigation cameras on NASA’s Perseverance captured the rover’s tracks coming from an area called “Witch Hazel Hill,” on May 13, 2025, the 1,503rd Martian day, or sol,