Results 81 to 90 of about 3,615 (185)

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

Internally heated porous convection: an idealised model for Enceladus' hydrothermal activity [PDF]

arXiv, 2020
Recent planetary data and geophysical modelling suggest that hydrothermal activity is ongoing under the ice crust of Enceladus, one of Saturn's moons. According to these models, hydrothermal flow in the porous, rocky core of the satellite is driven by tidal deformation that induces dissipation and volumetric internal heating.
arxiv  

EnEx-RANGE - Robust autonomous Acoustic Navigation in Glacial icE

EPJ Web of Conferences, 2017
Within the Enceladus Explorer Initiative of the DLR Space Administration navigation technologies for a future space mission are in development. Those technologies are the basis for the search for extraterrestrial life on the Saturn moon Enceladus.
Heinen Dirk, Eliseev Dmitry, Henke Christoph, Jeschke Sabina, Linder Peter, Reuter Sebastian, Schönitz Sebastian, Scholz Franziska, Weinstock Lars Steffen, Wickmann Stefan, Wiebusch Christopher, Zierke Simon   +11 more
doaj   +1 more source

Pickup ions at Dione and Enceladus: Cassini Plasma Spectrometer simulations [PDF]

, 2004
E. C. Sittler, R. E. Johnson, S. Jurač, J. D. Richardson, M. A. McGrath, F. J. Crary, D. T. Young, J. E. Nordholt   +7 more
openalex   +1 more source

Enceladus's Tidal Heating [PDF]

arXiv
Saturn raises a time-dependent tide on its small moon Enceladus, due to the eccentricity of the orbit. As shown in a companion paper (Goldreich et al.), the resulting tidal heating drives Enceladus into a limit cycle, in which its eccentricity and shell thickness vary in tandem, on a timescale of ~ 10 Myr. The limit cycle explains a variety of observed
arxiv  

Cassini Observes the Active South Pole of Enceladus [PDF]

, 2006
C. C. Porco, P. Helfenstein, P. C. Thomas, A. P. Ingersoll, Jack Wisdom, Robert West, G. Neukum, T. Denk, Robert Wagner, T. Roatsch, S. W. Kieffer, E. P. Turtle, A. S. McEwen, T. V. Johnson, J. A. Rathbun, J. Veverka, D. Wilson, Jason Perry, J. N. Spitale, A. Brahic, J. A. Burns, Anthony D. DelGenio, L. Dones, C. D. Murray, S. W. Squyres   +24 more
openalex   +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

Origin and Evolution of Enceladus's Tidal Dissipation. [PDF]

Space Sci Rev, 2023
Nimmo F, Neveu M, Howett C.
europepmc   +1 more source

Convection in Enceladus' ice shell: Conditions for initiation [PDF]

, 2007
A. C. Barr, William B. McKinnon
openalex   +1 more source

The Oxygen Release Instrument: Space Mission Reactive Oxygen Species Measurements for Habitability Characterization, Biosignature Preservation Potential Assessment, and Evaluation of Human Health Hazards

Life, 2019
We describe the design of an instrument, the OxR (for Oxygen Release), for the enzymatically specific and non-enzymatic detection and quantification of the reactive oxidant species (ROS), superoxide radicals (O2•−), and peroxides (O22−,
Christos D. Georgiou, Christopher P. McKay, Richard C. Quinn, Electra Kalaitzopoulou, Polyxeni Papadea, Marianna Skipitari   +5 more
doaj   +1 more source