Results 31 to 40 of about 7,946 (214)

Returning Samples From Enceladus for Life Detection

Frontiers in Astronomy and Space Sciences, 2020
Evidence suggests that Saturn's icy moon Enceladus has a subsurface ocean that sources plumes of water vapor and ice vented to space from its south pole.
Marc Neveu, Marc Neveu, Ariel D. Anbar, Ariel D. Anbar, Alfonso F. Davila, Daniel P. Glavin, Shannon M. MacKenzie, Charity M. Phillips-Lander, Brent Sherwood, Yoshinori Takano, Peter Williams, Hajime Yano   +11 more
doaj   +1 more source

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, A. E. Zubarev, E. S. Brusnikin, J. Oberst   +3 more
doaj   +1 more source

The merger that led to the formation of the Milky Way's inner stellar halo and thick disk [PDF]

, 2018
The assembly process of our Galaxy can be retrieved using the motions and chemistry of individual stars. Chemo-dynamical studies of the nearby halo have long hinted at the presence of multiple components such as streams, clumps, duality and correlations ...
A Bonaca, A Helmi, A Helmi, A Helmi, A Helmi, A Villalobos, A Villalobos, AC Robin, AE García Pérez, AG Butkevich, AJ Deason, Amina Helmi, Anthony G. A. Brown, AP Cooper, B Abolfathi, C Conroy, Carine Babusiaux, CB Brook, CR Hayes, D Carollo, D Carollo, DA VandenBerg, Davide Massari, E Fernández-Alvar, F Arenou, Gaia Collaboration, Gaia Collaboration, Gaia Collaboration, Gaia Collaboration, Gaia Collaboration, Gaia Collaboration, Helmer H. Koppelman, HH Koppelman, HL Morrison, HL Morrison, I Jean-Baptiste, JA Larsen, Jovan Veljanoski, K Freeman, K Hawkins, L Lindegren, L Posti, M Chiba, M Haywood, P Marigo, PE Nissen, PE Nissen, PJ McMillan, PS Behroozi, R Schönrich, RP Marel Van der, SR Majewski, TC Beers, V Belokurov, V Belokurov, WJ Schuster   +55 more
core   +4 more sources

Alien Carousel: In Situ life detection on icy moons with a single-actuator holographic microfluidic platform

Frontiers in Astronomy and Space Sciences
Enceladus, one of Saturn’s moons, is considered one of the most promising places in the solar system to find life. The Cassini mission discovered organic-rich water plumes from Enceladus’s subsurface ocean, prompting new lander mission planning.
M. F. L. Meersman, S. M. Cazaux, J. Jovanova   +2 more
doaj   +1 more source

On the formation location of Uranus and Neptune as constrained by dynamical and chemical models of comets

, 2011
The D/H enrichment observed in Saturn's satellite Enceladus is remarkably similar to the values observed in the nearly-isotropic comets. Given the predicted strong variation of D/H with heliocentric distance in the solar nebula, this observation links ...
Brown, Brown, Carusi, Clube, Dones, Eberhardt, Levison, Teixeira, Villanueva, Weaver   +9 more
core   +2 more sources

The Liquidus Temperature for Methanol-Water Mixtures at High Pressure and Low Temperature, with Application to Titan [PDF]

, 2018
Methanol is a potentially important impurity in subsurface oceans on Titan and Enceladus. We report measurements of the freezing of methanol-water samples at pressures up to 350~MPa using a volumetric cell with sapphire windows. For low concentrations of
Bartholet, Z. T., Chumsky, R. J., Delano, K. C., Dougherty, A. J., Huang, X., Morris, D. K.   +5 more
core   +2 more sources

Terrestrial Analogs to Titan for Geophysical Research

Reviews of Geophysics, Volume 64, Issue 2, June 2026.
Abstract Saturn's moon Titan exhibits remarkable parallels to the Earth in many geophysical and geological processes not found elsewhere in the solar system at the present day. These include a nitrogen atmosphere with a condensible gas—methane—replacing the Earth's water, leading to an active meteorology with rainfall and surface manifestations ...
Conor A. Nixon, Samuel Birch, Audrey Chatain, Charles Cockell, Kendra K. Farnsworth, Peter M. Higgins, Stéphane Le Mouélic, Rosaly M. C. Lopes, Michael J. Malaska, Mohit Melwani Daswani, Kelly E. Miller, Catherine D. Neish, Olaf G. Podlaha, Jani Radebaugh, Lauren R. Schurmeier, Ashley Schoenfeld, Krista M. Soderlund, Anezina Solomonidou, Christophe Sotin, Nicholas A. Teanby, Tetsuya Tokano, Steven D. Vance   +21 more
wiley   +1 more source

The Physio-Chemical Properties for the Interior of Enceladus [PDF]

, 2018
We have reviewed the current physical and chemical conditions of the Enceladus sub-surface environment, including the composition, temperature, pH and pressure.
Hamp, R. E., Olsson-Francis, K., Pearson, V. K., Ramkissoon, N. K., Schwenzer, S. P.   +4 more
core  

THEO Concept Mission: Testing the Habitability of Enceladus's Ocean

, 2016
Saturn's moon Enceladus offers a unique opportunity in the search for life and habitable environments beyond Earth, a key theme of the National Research Council's 2013-2022 Decadal Survey. A plume of water vapor and ice spews from Enceladus's south polar
Budney, Charles J., Caswell, Tess E., Crismani, Matteo, DeBruin, Kevin, Dhaliwal, Jasmeet K., Hofgartner, Jason D., John, Kristen K., Krishnamurthy, Akshata, Leung, Cecilia W. S., MacKenzie, Shannon M., Mitchell, Karl L., O'Rourke, Joesph G., Petro, Elaine M., Phan, Samson, Phillips-Lander, Charity M., Powell, Kathryn E., Stavros, E. Natasha, Steuer, Casey J., Sun, Vivian Z., Wynne, J. Judson   +19 more
core   +1 more source

Resonance locking as the source of rapid tidal migration in the Jupiter and Saturn moon systems [PDF]

, 2016
The inner moons of Jupiter and Saturn migrate outwards due to tidal energy dissipation within the planets, the details of which remain poorly understood. We demonstrate that resonance locking between moons and internal oscillation modes of the planet can
Fuller, Jim, Luan, Jing, Quataert, Eliot
core   +2 more sources