Results 11 to 20 of about 741 (254)

Review of Saturn’s icy moons following the Cassini mission

open access: yesReports on Progress in Physics, 2018
We review our knowledge of the icy moons of Saturn prior to the Cassini orbital mission, describe the discoveries made by the instrumentation onboard the Cassini spacecraft.
Michele K Dougherty, Linda J Spilker
openaire   +6 more sources

Marine Science Can Contribute to the Search for Extra-Terrestrial Life [PDF]

open access: yesLife
Life on our planet likely evolved in the ocean, and thus exo-oceans are key habitats to search for extraterrestrial life. We conducted a data-driven bibliographic survey on the astrobiology literature to identify emerging research trends with marine ...
Jacopo Aguzzi   +14 more
doaj   +2 more sources

Ceres’ Broad‐Scale Surface Geomorphology Largely Due To Asymmetric Internal Convection

open access: yesAGU Advances, 2022
While we now know much about the volatile‐rich world of Ceres from the Dawn mission, the deep interior remains something of an enigma, shrouded by a crust composed of water ice, carbonates, phyllosilicates, salts and clathrate hydrates.
Scott D. King   +6 more
doaj   +1 more source

A Review on Hypothesized Metabolic Pathways on Europa and Enceladus: Space-Flight Detection Considerations

open access: yesLife, 2023
Enceladus and Europa, icy moons of Saturn and Jupiter, respectively, are believed to be habitable with liquid water oceans and therefore are of interest for future life detection missions and mission concepts. With the limited data from missions to these
Jessica M. Weber   +5 more
doaj   +1 more source

The archaeal class Halobacteria and astrobiology: Knowledge gaps and research opportunities

open access: yesFrontiers in Microbiology, 2022
Water bodies on Mars and the icy moons of the outer solar system are now recognized as likely being associated with high levels of salt. Therefore, the study of high salinity environments and their inhabitants has become increasingly relevant for ...
Jia-Hui Wu   +8 more
doaj   +1 more source

Energetic Constraints on Ocean Circulations of Icy Ocean Worlds

open access: yesThe Planetary Science Journal, 2023
Globally ice-covered oceans have been found on multiple moons in the solar system and may also have been a feature of Earth’s past. However, relatively little is understood about the dynamics of these ice-covered oceans, which affect not only the ...
Malte F. Jansen   +3 more
doaj   +1 more source

An Approach Based on Multiobjective Genetic Algorithms to Schedule Observations in Planetary Remote Sensing Missions

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020
Data acquisition in planetary remote sensing missions is influenced by complex environmental resource- and instrument-specific constraints. This impedes to perform observations at any given time during the mission and with any of the instruments ...
Stefano Paterna   +2 more
doaj   +1 more source

A Recent Impact Origin of Saturn’s Rings and Mid-sized Moons

open access: yesThe Astrophysical Journal, 2023
We simulate the collision of precursor icy moons analogous to Dione and Rhea as a possible origin for Saturn’s remarkably young rings. Such an event could have been triggered a few hundred million years ago by resonant instabilities in a previous ...
L. F. A. Teodoro   +7 more
doaj   +1 more source

Plume Sample Modification at Icy Moons: Implications for Biosignatures

open access: yesFrontiers in Astronomy and Space Sciences, 2020
Water from the plumes of icy moons is a potential sampling target that may preserve the aqueous chemistry of the interior oceans, as well as organics and other biosignatures or prebiotic chemical precursors.
Matthew A. Pasek
doaj   +1 more source

New Signatures of Bio-Molecular Complexity in the Hypervelocity Impact Ejecta of Icy Moon Analogues

open access: yesLife, 2022
Impact delivery of prebiotic compounds to the early Earth from an impacting comet is considered to be one of the possible ways by which prebiotic molecules arrived on the Earth.
Surendra V. Singh   +11 more
doaj   +1 more source

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