Results 101 to 110 of about 7,875 (212)

Saturn in hot water: viscous evolution of the Enceladus torus

, 2008
The detection of outgassing water vapor from Enceladus is one of the great breakthroughs of the Cassini mission. The fate of this water once ionized has been widely studied; here we investigate the effects of purely neutral-neutral interactions within ...
Alison J. Farmer, Bensch, Buffa, Burger, Burke, Crovisier, Crovisier, Decker, Farrell, Frank, Goldreich, Halevy, Hansen, Johnson, Jurac, Jurac, Jurac, Marconi, Mason, Meyer, Mumma, Narayan, Porco, Roberts, Rybicki, Sauval, Shemansky, Sittler, Smyth, Spencer, Spitale, Teske, Wahlund, Waite   +33 more
core   +1 more source

Low Energy Subsurface Environments as Extraterrestrial Analogs

Frontiers in Microbiology, 2018
Earth’s subsurface is often isolated from phototrophic energy sources and characterized by chemotrophic modes of life. These environments are often oligotrophic and limited in electron donors or electron acceptors, and include continental crust ...
Rose M. Jones, Jacqueline M. Goordial, Beth N. Orcutt   +2 more
doaj   +1 more source

Exploring the Interior Structure and Mode of Tidal Heating in Enceladus

The Planetary Science Journal
Enceladus is among the most intriguing bodies in the solar system due to its astrobiological potential. Determining the extent and duration of habitability (i.e., sustained habitability ) requires characterizing the interior properties and the level and ...
Amirhossein Bagheri, Mark Simons, Ryan S. Park, Alexander Berne, Douglas Hemingway, Mohit Melwani Daswani, Steven D. Vance   +6 more
doaj   +1 more source

Evidence for multiple crossings and stripping of Gaia-Enceladus/Sausage across the Milky Way

Astronomy & Astrophysics
Context. The accretion of Gaia-Enceladus/Sausage (GES) onto the Milky Way (MW) is one of the most prominent features of the Galactic halo revealed by the combination of the Gaia satellite and large spectroscopic surveys.
Berni L., Palla M., Magrini L., Spina L.
doaj   +1 more source

Impacts on Ocean Worlds Are Sufficiently Frequent and Energetic to Be of Astrobiological Importance

The Planetary Science Journal
Evidence for the beneficial role of impacts in the creation of urable or habitable environments on Earth prompts the question of whether meteorite impacts could play a similar role at other potentially urable/habitable worlds like Enceladus, Europa, and ...
Shannon M. MacKenzie, Alexandra Pontefract, R. Terik Daly, Jacob J. Buffo, Gordon R. Osinski, Christopher J. Cline II, Mark J. Cintala, Kathleen L. Craft, Mallory J. Kinczyk, Joshua Hedgepeth, Sarah M. Hörst, Abel Méndez, Ben K. D. Pearce, Angela M. Stickle, Steven D. Vance   +14 more
doaj   +1 more source

A Potential Mushy Source for the Geysers of Enceladus and Other Icy Satellites

Geophysical Research Letters
Enceladus is a target for astrobiology due to the H2O plume ejecta measured by the Cassini spacecraft and the inferred subsurface ocean that could be the source of the geysers.
Colin R. Meyer, Jacob J. Buffo, Francis Nimmo, Andrew J. Wells, Samuel Boury, Mark Fox‐Powell, Tara C. Tomlinson, Jamie R. G. Parkinson, Geoffrey M. Vasil   +8 more
doaj   +1 more source

Enceladus: Astrobiology Revisited

Journal of Geophysical Research: Biogeosciences
AbstractAstrobiology research seeks to understand how life begins and evolves, and to determine whether life exist elsewhere in the universe. The discovery of diverse ocean worlds has significantly expanded the number of planetary bodies in the Solar System that could potentially contain life.
A. F. Davila, J. L. Eigenbrode
openaire   +1 more source

Enough Sulfur and Iron for Potential Life Make Enceladus’s Ocean Fully Habitable

The Astrophysical Journal Letters
The Cassini spacecraft revealed life-forming elements like CHNOP and diverse organic compounds from Enceladus’s ocean. However, the availability of minor but bio-essential nutrients such as iron and sulfur remains unknown.
Weiming Xu, Can Liu, Ao Zhang, Maggie Lau, H. James Cleaves, Fang Huang, Christopher R. Glein, Jihua Hao   +7 more
doaj   +1 more source

Improving Porosity Calculation Methods and Proposing a New Model Universally Applicable to Large- and Medium-sized Planetary Objects

The Astrophysical Journal
Our work was aimed at the improvement of two main already existing methods of porosity calculation on a planetary scale in order to expand these methods to be applicable to exoplanetary interiors. In addition to implementing some improvements in the used
Imre Kisvárdai, Ákos Kereszturi
doaj   +1 more source

Enceladus Farm: Can plants grow with Enceladus' water? (Preliminary Report)

, 2020
12 pages, 7 figures, Preliminary results.
openaire   +2 more sources