OOIR: Observatory of International Research

Papers

(The H4-Index of Astrobiology is 23. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2021-09-01 to 2025-09-01.)

Article	Citations
Spore Survival During Abrasive Saltation on Mars: A Comment on Bak et al.	87
Chapter 10: Planetary Protection—History, Science, and the Future	57
Extremophiles in Earth's Deep Seas: A View Toward Life in Exo-Oceans	48
Hydrothermal Regeneration of Ammonium as a Basin-Scale Driver of Primary Productivity	47
Life Detection and Microbial Biomarker Profiling with Signs of Life Detector-Life Detector Chip During a Mars Drilling Simulation Campaign in the Hyperarid Core of the Atacama Desert	42
Novel Chimeric Amino Acid-Fatty Alcohol Ester Amphiphiles Self-Assemble into Stable Primitive Membranes in Diverse Geological Settings	38
Deoxyribonucleic Acid Extraction from Mars Analog Soils and Their Characterization with Solid-State Nanopores	37
Ultraviolet Resistance of Microorganisms Isolated from Uranium-Rich Minerals from Perus, Brazil	37
Self-Shielding Enhanced Organics Synthesis in an Early Reduced Earth’s Atmosphere	35
Proteomic Insights into Psychrophile Growth in Perchlorate-Amended Subzero Conditions: Implications for Martian Life Detection	35
Scientific Targets of Tanpopo: Astrobiology Exposure and Micrometeoroid Capture Experiments at the Japanese Experiment Module Exposed Facility of the International Space Station	33
Traces of Bacterial Contribution to Calcite Weathering Detected by Statistical Characterizations of Surface Microtopography	32
What Would an Alien Amino Acid Alphabet Look Like and Why?	31
Magma Ocean Evolution of the TRAPPIST-1 Planets	30
Exobiology of the Venusian Clouds: New Insights into Habitability through Terrestrial Models and Methods of Detection	29
Protective Effects of Halite to Vacuum and Vacuum-Ultraviolet Radiation: A Potential Scenario During a Young Sun Superflare	28
An Accounting of Contamination Control Requirements, Implementation, and Verification of the Sample Tubes for the Mars 2020 Mission and Future Return Sample Science	27
Boron as a Hypothetical Participant in the Prebiological Enantiomeric Enrichment	27
Sharp Rise in Cosmic Ray Irradiation of Organisms on Earth Caused by a Nearby SN Shockwave Passage	27
The Venus Life Equation	26
Linear Ion Trap Mass Spectrometer (LITMS) Instrument Field and Laboratory Tests as Part of the ARADS Field Campaigns	25
Challenges and Opportunities in Using Amino Acids to Decode Carbonaceous Chondrite and Asteroid Parent Body Processes	24
The Call for a New Definition of Biosignature	24
Organic Biosignature Degradation in Hydrothermal and Serpentinizing Environments: Implications for Life Detection on Icy Moons and Mars	23
Exploiting the Unique Biology of Caenorhabditis elegans to Launch Neurodegeneration Studies in Space	23

Eta-Earth Revisited I: A Formula for Estimating the Maximum Number of Earth-Like Habitats	23
Mesoarchean Microbial Cd, Ba, and Ni Cycling: Evidence for Photosynthesis in Pongola Group Stromatolites through Novel Stable Isotopes and High-Resolution Trace Element Maps	23
Astrobiological Implications of Interstellar Material in the Solar System	23
Haloferax volcanii Remains Viable and Shows Morphological Changes under Anoxic (CO₂-Enriched) and Hypobaric (2.4 kPa) Atmospheric Conditions	23