New analysis finds signs of life on Mars actually came from Earth
A pair of stubborn molecules, prized because they can survive deep time, just passed an important Mars test…
Mars Organic Geochemistry-Are We Alone, and Where Did We Come From?
As NASA’s Mars Exploration Rover Spirit began collecting images for a 360-degree panorama of new terrain, the rover…
Predictive Rankings of the Probability for Temperate Terrestrial Worlds for the HWO ExEP Mission Star List
The simulated occurrence rates of planets in both simulated (blue) and known (orange) planetary systems around nearby stars.…
NWA Citizen Science Call 2026 (Astrobiology, Origin of life, Biosignatures)
Dear all, We would like to draw your attention to the NWA Citizen Science Call 2026. This call…
The Unique Ability Of The Hubble Space Telescope To Characterize Young Exoplanet Environments
Modified Pass et al. (2025) Figure 2 showing an updated Cosmic Shoreline for exoplanets orbiting full convective M…
A Glimpse At The Origins Of Life Through A Deceptive Mirror
Adsorption of crystals of a biological chiral molecule onto a gold-coated cobalt surface. Larger crystals of one specific…
Early Complex Life Lived In Oxygenated Seas, Challenging Long‑held Views Of Evolution
Microfossil by Researcher Max Lechte. Credit – LA Reidman McGill University The earliest known eukaryotes, the ancestors of…
Diverse Organic Molecules On Mars Revealed By The First SAM TMAH Experiment
SAM is the most complex instrument ever sent on a planetary mission. Principal Investigator Paul Mahaffy leads the…
Understanding Life And Homochirality – Astrobiology
Calculated total spin vector and its direction. Spin polarization illustrated by S (blue arrow) for a spin-orbit perturbed…
New Evidence For An Ancient Ocean On Mars
Sedimentologic and mineralogic evidence for sedimentary rocks, clay stratigraphy and open-basin deltas along and within the detected shelf.…
Active Moons In Our Solar System And Beyond – Io, Europa, Enceladus, Triton, and Exomoons
Interior, surface and atmosphere visualisation of Europa, Enceladus, Triton, Io, and exoIo. Best-estimate plume heights are displayed to…
Microstructural And Biochemical Constraints On Cryptoendolithic Life In Atacama Halite: Implications For Extreme Habitability
Graphical Abstract — Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy Halite pinnacles from the Yungay area in…