Results 11 to 20 of about 3,316 (179)
Current understanding of electroautotrophy and its relevance in astrobiology-related research. [PDF]
mLifeAbstract Electroautotrophy—the use of extracellular electrons as the primary energy source for autotrophic metabolism—remains understudied compared to photoautotrophy and chemoautotrophy. Its occurrence in deep‐earth and deep‐sea environments suggests profound implications for astrobiology, yet electroautotrophic microorganisms remain poorly explored ...
Wang Q, Lau Vetter MCY.
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Astrobiology eXploration at Enceladus (AXE): A New Frontiers Mission Concept Study
The Planetary Science Journal, 2023 The Saturnian moon Enceladus presents a unique opportunity to sample the contents of a subsurface liquid water ocean in situ via the continuous plume formed over its south polar terrain using a multi-flyby mission architecture.
K. Marshall Seaton +19 more
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Scientific Reports, 2022 Lake Untersee located in Eastern Antarctica, is a perennially ice-covered lake. At the bottom of its southern basin lies 20 m of anoxic, methane rich, stratified water, making it a good analog for Enceladus, a moon of Saturn.
Nicole Yasmin Wagner +3 more
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A GLOBAL SHAPE MODEL FOR SATURN’S MOON ENCELADUS FROM A DENSE PHOTOGRAMMETRIC CONTROL NETWORK [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020 A planetary body’s global shape provides both insight into its geologic evolution, and a key element of any Planetary Spatial Data Infrastructure (PSDI). NASA’s Cassini mission to Saturn acquired more than 600 moderate- to high-resolution images (<500
M. T. Bland +3 more
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Particle entrainment and rotating convection in Enceladus’ ocean
Communications Earth & Environment, 2023 Observations from Cassini have identified nanometer-sized silica grains in Saturn’s E-ring although their origin is unclear. Tidal deformation within Enceladus’ silicate core has been predicted to generate hot hydrothermal fluids that rise from the core ...
Ashley M. Schoenfeld +5 more
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Enceladus as a Potential Niche for Methanogens and Estimation of Its Biomass
Life, 2021 Enceladus is a potential target for future astrobiological missions. NASA’s Cassini spacecraft demonstrated that the Saturnian moon harbors a salty ocean beneath its icy crust and the existence and analysis of the plume suggest water–rock reactions ...
Laura I. Tenelanda-Osorio +3 more
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Predicting the Effect of Surface Properties on Enceladus for Landing
The Planetary Science Journal, 2023 The prospect of landing on the surface of Enceladus comes with the question of whether the surface conditions permit selection and certification of one or more safe landing sites in an area of high science value.
John M. Harmon +3 more
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Low effective ultraviolet exposure ages for organics at the surface of Enceladus
Communications Earth & Environment, 2023 The saturnian moon Enceladus presents a remarkable opportunity in our solar system for searching for evidence of life, given its habitable ocean and plume that deposits organic-bearing ocean material onto the surface.
Amanda R. Hendrix, Christopher H. House
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Method for detecting and quantitating capture of organic molecules in hypervelocity impacts
MethodsX, 2021 Enceladus is a prime candidate in the solar system for in-depth astrobiological studies searching for habitability and life because it has a liquid water ocean with significant organic content and ongoing cryovolcanic activity. The presence of ice plumes
Bahar Kazemi +5 more
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A LIBRATION MODEL FOR ENCELADUS BASED ON GEODETIC CONTROL POINT NETWORK ANALYSIS [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016 A new global control point network was derived for Enceladus, based on Cassini and Voyager-2 image data. Cassini images were taken from 2005 to 2014, for Voyager we have only one flyby in the middle of 1981.
I. E. Nadezhdina +3 more
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