Environmental Microbiology Reports, Год журнала: 2024, Номер 16(2)
Опубликована: Апрель 1, 2024
Abstract Cueva del Viento, located in the Canary Islands, Spain, is Earth's sixth‐longest lava tube, spanning 18,500 m, and was formed approximately 27,000 years ago. This complex volcanic cave system characterized by a unique geomorphology, featuring an intricate network of galleries. Despite its geological significance, geomicrobiology Viento remains largely unexplored. study employed combination culture‐dependent techniques metabarcoding data analysis to gain comprehensive understanding cave's microbial diversity. The 16S rRNA gene approach revealed that coloured mats (yellow, red white) coating walls are dominated phyla Actinomycetota , Pseudomonadota Acidobacteriota . Of particular interest high relative abundance genus Crossiella which involved urease‐mediated biomineralization processes, along with presence genera associated nitrogen cycling, such as Nitrospira Culture‐dependent provided insights into morphological characteristics isolated species their potential metabolic activities, particularly for strains Streptomyces spp., Paenarthrobacter sp. Pseudomonas spp. Our findings underscore ideal environment studying diversity isolation characterization novel bacterial biotechnological interest.
Язык: Английский
Процитировано
6Fundamental Science and Engineering Questions in Planetary Cave Exploration
Journal of Geophysical Research Planets, Год журнала: 2022, Номер 127(11)
Опубликована: Май 4, 2022
Abstract Nearly half a century ago, two papers postulated the likelihood of lunar lava tube caves using mathematical models. Today, armed with an array orbiting and fly‐by satellites survey instrumentation, we have now acquired cave data across our solar system—including identification potential entrances on Moon, Mars, at least nine other planetary bodies. These discoveries gave rise to study caves. To help advance this field, leveraged expertise interdisciplinary group identify strategy explore beyond Earth. Focusing primarily astrobiology, environment, geology, robotics, human exploration, goal was produce framework guide subdiscipline through next decade. do this, first assembled list 198 science engineering questions. Then, series social surveys, 114 scientists engineers winnowed down top 53 highest priority This exercise resulted in identifying emerging crucial research areas that require robust development ultimately support robotic mission cave—principally Moon and/or Mars. With necessary financial investment institutional support, technological required achieve these advancements over decade are attainable. Subsequently, will be positioned robotically examine search for evidence life within Martian caves; turn, set stage exploration habitation both subsurface.
Язык: Английский
Процитировано
23A comprehensive review of lunar lava tube base construction and field research on a potential Earth test site
International Journal of Mining Science and Technology, Год журнала: 2024, Номер 34(9), С. 1201 - 1216
Опубликована: Июль 29, 2024
The Moon, as the closest celestial body to Earth, plays a pivotal role in progression of deep space exploration, and establishment research outposts on its surface represents crucial step this mission. Lunar lava tubes are special underground caves formed by volcanic eruptions considered ideal natural shelters scientific laboratories for lunar base construction. This paper begins with an in-depth overview geological origins, exploration history, distribution locations tubes. Subsequently, it delves into presentation four distinctive advantages typical concepts constructing bases within tubes, summarizing ground-based attempts made thus far tube Field studies conducted Hainan revealed rock compositions similar those found during Apollo missions clear structures, making promising analog site. Lastly, challenges opportunities encountered field geotechnical engineering regarding discussed, encompassing cave technologies, in-situ testing methods, geomechanical properties under extreme environments, design structural stability assessment, excavation reinforcement techniques, simulated Earth-based base.
Язык: Английский
Процитировано
5Dark blue-green: Cave-inhabiting cyanobacteria as a model for astrobiology
Frontiers in Astronomy and Space Sciences, Год журнала: 2023, Номер 10
Опубликована: Фев. 13, 2023
Subterranean environments on Earth serve as an analog for the study of microbes other planets, which has become active area research. Although it might sound contradictory that photosynthetic cyanobacteria thrive in extreme low light environments, they are frequent inhabitants caves Earth. Throughout phylum these have developed unique adaptations cannot only be used biotechnological processes but also implications astrobiology. They can, example, both accommodate conditions by producing specific pigments allow photosynthesis near-infrared (IR) radiation/far-red light, and can synthesize bioplastic compounds calcium carbonate sheaths represent valuable resources during human colonization planets or rock bodies. This article will highlight potential benefits cave-inhabiting present a suitable bioreactor technique utilization special future space missions.
Язык: Английский
Процитировано
12Locomotion as manipulation with ReachBot
Science Robotics, Год журнала: 2024, Номер 9(89)
Опубликована: Апрель 17, 2024
Caves and lava tubes on the Moon Mars are sites of geological astrobiological interest but consist terrain that is inaccessible with traditional robot locomotion. To support exploration these sites, we present ReachBot, a uses extendable booms as appendages to manipulate itself respect irregular rock surfaces. The terminate in grippers equipped microspines provide ReachBot large workspace, allowing it achieve force closure enclosed spaces, such walls tube. propel contact-before-motion planner for nongaited legged locomotion internal control, similar multifingered hand, keep its long, slender tension. Motion planning also depends finding executing secure grips features. We used Monte Carlo simulation inform gripper design predict grasp strength variability. In addition, two-step perception system identify possible locations. validate our approach mechanisms under realistic conditions, deployed single arm tube Mojave Desert. field test confirmed will find many targets grasps proposed kinematic design.
Язык: Английский
Процитировано
4Crack Development Inside and Around Lunar Lava Tubes
Journal of Geophysical Research Planets, Год журнала: 2025, Номер 130(3)
Опубликована: Март 1, 2025
Abstract Evidence shows that lava tubes on the Moon, which constitute intriguing targets for exploration and long‐term habitation, could be much larger than terrestrial tubes. However, existing observation strategies cannot confidently constrain exact dimensions of lunar in anticipation situ exploration. We produced analyzed numerical models elastic gravity‐induced deformation field around to determine where failure may occur their internal surfaces how surface above them deform. This analysis suggests ways tube from morphological observations. The predict extensive floors roofs, leaving relatively small sections pristine floor near walls even if itself not collapse. most type failure, tensile depends shape. Additionally, develops cracks subtle topographic bulges running parallel axis at distances proportional width. If observed, these used tube's width remotely. examined several sinuous rilles using orbital data search features we expect Linear consistent with presence are present possible extensions three rilles: Rimae Mairan, Sharp, Marius. Other locations did show similar features, possibly because resolution available data, depths, or degradation. low‐altitude observations would more sensitive expected structures.
Язык: Английский
Процитировано
0Planetary Caves: A Solar System View of Processes and Products
Journal of Geophysical Research Planets, Год журнала: 2022, Номер 127(11)
Опубликована: Окт. 28, 2022
Abstract We provide the first solar system wide compendium of speleogenic processes and products. An examination 15 bodies revealed that six cave‐forming occur beyond Earth including volcanic (cryo magmatic), fracturing (tectonic impact melt), dissolution, sublimation, suffusion, landslides. Although no caves (i.e., confirmed entrances with associated linear passages) have been confirmed, 3,545 SAPs (subsurface access points) identified on 11 planetary potential for (and thus SAPs) was observed an additional four bodies. The bulk our knowledge extraterrestrial is based global databases Moon Mars, which are high‐resolution imagery other data available. To further characterize most features acquisition (preferably coverage) subsequent analysis will be required. next few decades hold considerable promise identifying characterizing across system.
Язык: Английский
Процитировано
17Evaluation of deep space exploration risks and mitigations against radiation and microgravity
Frontiers in Nuclear Medicine, Год журнала: 2023, Номер 3
Опубликована: Сен. 21, 2023
Ionizing radiation and microgravity are two considerable health risks encountered during deep space exploration. Both have deleterious effects on the human body. On one hand, weightlessness is known to induce a weakening of immune system, delayed wound healing musculoskeletal, cardiovascular, sensorimotor deconditioning. other exposure can lead long-term such as cancer cataracts well an adverse effect central nervous cardiovascular systems. originates from three main sources in space: galactic cosmic radiation, solar particle events winds. Furthermore, inside spacecraft certain habitats Lunar Martian surfaces, crew exposed intravehicular which arises nuclear reactions between matter. Besides approaches already use, shielding materials (such aluminium, water or polyethylene), alternative (including boron nanotubes, complex hybrids, composite hybrid materials, regolith) active (using fields deflect particles) being investigated for their abilities mitigate ionizing radiation. From biological point view, it be predicted that missions beyond Low Earth Orbit (LEO) will affect body undesirable ways, e.g., increasing cataracts, system diseases, carcinogenesis, accelerated ageing. Therefore, necessary assess related exploration develop mitigation strategies reduce these tolerable level. By using biomarkers sensitivity, agencies developing extensive personalised medical examination programmes determine astronaut's vulnerability Moreover, researchers pharmacological solutions (e.g., radioprotectors radiomitigators) proactively reactively protect astronauts Finally, research more effective countermeasures use future missions, also improvements care Earth. This review discuss travel LEO poses astronauts, methods monitor astronauts' health, possible risks.
Язык: Английский
Процитировано
10Robotic exploration of Martian caves: Evaluating operational concepts through analog experiments in lava tubes
Acta Astronautica, Год журнала: 2024, Номер 223, С. 741 - 758
Опубликована: Июль 26, 2024
Язык: Английский
Процитировано
3Equifinality and unusual genesis of closed depressions in a mixed carbonate/igneous terrain
Geomorphology, Год журнала: 2024, Номер 459, С. 109248 - 109248
Опубликована: Май 14, 2024
Язык: Английский
Процитировано
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