Sample Return – Page 36 – My WordPress Site

Constraint on the lifetime 𝐿 = 10𝑛 of intelligent technological civilizations derived from the Fermi paradox. The expected number of coexisting civilizations 𝑁 is shown as a function of the civilization lifetime for different assumptions about the probability 𝑓 that a habitable planet produces a technological civilization. The shaded region corresponds to values for which 𝑁 ≫ 1, which are observationally excluded by the absence of detected extraterrestrial civilizations. The dashed line indicates the boundary 𝑁 = 1 and is shown for reference. -- astro-ph.GA

Biosignatures & Paleobiology, Exploration Gear & Tech, Habitable Zones, Imaging & Spectroscopy, Mars, Robotics/Rovers/UAVs, Sample Return, Water/Hycean Worlds & Oceanography

Rocks Collected On Mars Hold The Key to Water and Perhaps Life. Bring Them Back To Earth.

by Keith CowingAugust 14, 2024August 14, 2024

Schematic representation of the effect of stellar contamination (TLS) with actual examples of the effect of TLS in simulated signals.

AI - Data - Apps - Cybernetics, Astrogeology, Away Teams & Field Reports, Caves, Craters, Mountains & Lava Tubes, Exploration Gear & Tech, Fossils & Paleontology, Imaging & Spectroscopy, Mapping, Geodesy, Cartography, Mars, Missions & Hardware, Robotics/Rovers/UAVs, Sample Return, Tricorders & Sensors

Mapping “Brain Terrain” Regions on Mars Using Deep Learning

by Keith CowingAugust 13, 2024August 13, 2024

We investigated the survival of the yeast Rhodotorula frigidalcoholis and analysed its RNA after exposure to icy moon conditions. Our results show how the yeast can tolerate the extreme conditions and performs metabolic functions under the exposure conditions; for example, by halting the cell cycle in order to repair. Created in BioRender. Zaccaria (2026): https://BioRender.com/h5uzc5g. -- Environmental Microbiology via PubMed

Away Teams & Field Reports, Exploration Gear & Tech, Fossils & Paleontology, Imaging & Spectroscopy, Mapping, Geodesy, Cartography, Missions & Hardware, Nomenclature, Systematics, Natural History, Sample Return, Tricorders & Sensors

Tricorder Tech: Digitizing Earth’s Fossil Record With Low-cost 3D Scanning

by Keith CowingAugust 13, 2024August 13, 2024

Simulation results of abundance ratios [H2O2]/[H2O] (black lines), [H2]/[H2O] (orange lines), and [O2]/[H2O] (blue lines) with our model (model A) at 16 K (solid lines) and 77 K (dashed lines). The gray shaded and line filled regions show the experimental results of [H2O2]/[H2O] by Gomis et al. (2004a) at 16 and 77 K, respectively, with an assumed uncertainty of a factor of 3. -- astro-ph.GA

Away Teams & Field Reports, Biophysics, Biosignatures & Paleobiology, Origin & Evolution of Life, ROVs/Submersibles/Diving, Sample Return, Video, Audio, Webcasts, Podcasts, Water/Hycean Worlds & Oceanography

Webinar: “Origins of Life: The Lost City and Icy Worlds”

by Keith CowingAugust 12, 2024August 12, 2024

Antarctic Search for Meteorites Program (ANSMET)

AI - Data - Apps - Cybernetics, Biosignatures & Paleobiology, Exploration Gear & Tech, Fossils & Paleontology, Habitable Zones, Imaging & Spectroscopy, Mapping, Geodesy, Cartography, Missions & Hardware, Robotics/Rovers/UAVs, Sample Return

NASA Trains Machine Learning Algorithm for Mars Sample Analysis

by Keith CowingAugust 9, 2024August 9, 2024

Hypothetical sequence of events that led to the origin of the purple-green photosymbiosis of P. tenue. See main text for details. Note that all ancestors and extant species remain phagotrophic (or mixotrophic in the case of photosymbiosis). This study has revealed the order of endosymbiont acquisition in P. tenue and potential pre adaptations that facilitated the symbiosis. These insights have, in turn, shed light on the question of how two contrasting photosynthetic symbionts came to exist within the same host. Moreover, we have expanded the known diversity of the genus Pseudoblepharisma by discovering new non photosymbiotic species and confidently establishing the sister relationship between the genera Pseudoblepharisma and Spirostomum in the family Spirostomidae. Our genome-based predictions on the physiology of photosymbiotic Pseudoblepharisma species represent the basis for future experimental work on the identity of the metabolites that are exchanged among symbiotic partners. -- biorxiv.org

Away Teams & Field Reports, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Habitable Zones, Mapping, Geodesy, Cartography, Microbiology & Virology, Robotics/Rovers/UAVs, ROVs/Submersibles/Diving, Sample Return, Water/Hycean Worlds & Oceanography

Deep-Sea Discovery Could Help Find Alien Life

by Keith CowingAugust 1, 2024August 1, 2024

Color phase curves (CPCs) for the sum of planets ’b’ and ’d’ in the Proxima Centauri system. The CPC is the ratio of the flux in the 21 µm to 12.8 µm JWST/MIRI filters, normalized to the stellar flux, with the median value subtracted from the normalized ratio. The CPCs are the sum of both planets, and are shown here for the 2027 visibility period for JWST (lighter when not visible). Two cases are shown: using a hot rock model for ’b’, and a GCM (see text). Planet ’d’ is modeled as a hot rock in both cases.

Away Teams & Field Reports, Biochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biophysics, Biosignatures & Paleobiology, Extremeophiles and Extreme Environments, Genomics, Proteomics, Bioinformatics, Microbiology & Virology, Sample Return

New Groups Of Methane-producing Organisms Identified In Yellowstone National Park

by Keith CowingAugust 1, 2024September 18, 2025

Biosignatures & Paleobiology, Fossils & Paleontology, Imaging & Spectroscopy, Mars, Missions & Hardware, ROVs/Submersibles/Diving, Sample Return

Mars Perseverance Rover Imagery Of A Rock With Possible Biosignatures

by Keith CowingJuly 25, 2024July 30, 2024

SEDs scaled to the EEID (top panel) and to the semi-major axis of each planet b (bottom panel). In the bottom panel the wavelength range is changed to expand the X-ray and ultraviolet range. The Sun at 1 au is overplotted in black for reference in both panels. Dashed lines show regions where proxies were used. -- astro-ph.EP

AI - Data - Apps - Cybernetics, Biochemistry & Organic Chemistry, Biophysics, Exploration Gear & Tech, Genomics, Proteomics, Bioinformatics, Microbiology & Virology, Nanotechnology & SynBio, Sample Return, Space Life Science, Space Stations, Tricorders & Sensors

Offworld Life Science Hardware: Real-Time Culture-Independent Microbial Profiling Onboard the International Space Station Using Nanopore Sequencing

by Keith CowingJuly 17, 2024July 7, 2024

Astrochemistry, Astrogeology, Away Teams & Field Reports, Comets and Asteroids, Meteorites & Asteroids, Panspermia, Planetary Protection & Biosafety, Sample Return

In 2008 A NASA/SETI Away Team Found A Freshly Fallen Piece Of Asteroid 2008TC#

by Keith CowingJuly 16, 2024July 7, 2024