The paper discusses the possibility of dust particles containing living bacteria ejected from Earth reaching Europa and landing on its surface.
Status Report
Posted inBiosignatures & Paleobiology, Intelligence & Language, SETI & Technosignatures, Status Report
Dust To Dust: Prospects For Passive Technosignatures As Relics Of ETI
Technological societies are separated in time, not just space — that is the lesson of the Drake equation.
Posted inAstronauts and Explorers, Astropharmacy / Biotechnology, Microgravity, People Of Astrobiology, Space Life Science, Space Physiology & Medicine, Status Report
Offworld Biotech: Installing NEMUCO In BioLab On The International Space Station
ESA Astronaut Sophie Adenot: Day 122, orbit 1892 — In this timelapse, I’m installing the European NEMUCO experiment in the BioLab facility of the Columbus laboratory module. Delivered by the […]
Posted inBiochemistry & Organic Chemistry, Biophysics, Biosignatures & Paleobiology, Origin & Evolution of Life, Status Report
Metal-catalyzed Phosphorylation By Phosphite At The Origin Of Bioenergetics
How did phosphate become the universal energetic currency of life? Traditional approaches to phosphorylation in early evolution studies entail oven drying, non-aqueous solvents, dangerously reactive forms of phosphorus, or other […]
Posted inAstrogeology, Astronomy & Telescopes, Exoplanets, -moons, -comets, Status Report, Stellar Cartography
Revisiting The Exo-Mercury Candidate GJ 367 b With ESPRESSO And A Self-Consistent Tidal Distortion Model
We report revised mass and radius measurements for GJ 367 b, an ultra-short-period (7.7 hr) sub-Earth in a multi-planet system orbiting a nearby (~9 pc) M dwarf host. Previous mass […]
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
Building a Roadmap for Hubble Science into the 2030s: Revealing Atmospheric Structure and Evolution in Substellar Worlds Using HST
Substellar objects occupy a unique place in our universe, bridging the gap between the smallest stars and the largest planets, and serving as powerful laboratories for understanding extrasolar atmospheric physics […]
Posted inAstrochemistry, Astrogeology, Biochemistry & Organic Chemistry, Biophysics, Biosignatures & Paleobiology, Cryobiology, Habitable Zones, Icy Worlds, Missions & Hardware, Sample Return, Status Report, Titan, Water/Hycean Worlds & Oceanography
Trajectory Design For A Titan-Enceladus Plume Sampling Pseudo-orbiter Mission
The exploration of the Saturnian system, and in particular the plumes and subsurface ocean of Enceladus, has been identified as a key science theme for ESA’s Voyage 2050 program.
Posted inArtemis & Lunar Exploration, Astrobiology (general), Career Opportunities, Conferences and Meetings, Missions & Hardware, Status Report
ESA Exploration Science Workshop 2026 – Early Career Researchers Abstract Submissions
INFORMATION: ESA Exploration Science Workshop 2026 The European Space Agency is pleased to announce a Call for Abstracts for Early Career Researchers to submit abstracts to the ESA Exploration Science […]
Posted inAstronauts and Explorers, Astropharmacy / Biotechnology, Microgravity, People Of Astrobiology, Plant Biology, Sample Return, Space Agriculture, Space Life Science, Space Stations, Status Report
Offworld Biotech: Handling Microbial And Botanical Samples
NASA astronaut and Expedition 74 flight engineer Jessica Meir activates tubes filled with microbial and botanical samples associated with a variety of student-designed experiments inside the International Space Station’s Harmony […]
Posted inAstrochemistry, Atmospheres, Climate, Weather, Biochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biophysics, Biosignatures & Paleobiology, Origin & Evolution of Life, Status Report
Terrestrial Abiotic Synthesis of Simple Precursor Molecules Starting from Two Approaches: The Universality of Carbon Reduction
To address the chemistry responsible for life’s emergence, we examine the simple chemicals accessible on early Earth and the processes that could have transformed them. We focus on carbon reduction […]