Results 31 to 40 of about 10,448 (285)
Observation of nuclear quantum effects and hydrogen bond symmetrisation in high pressure ice
Nature Communications, 2018 Hydrogen atoms in water ices, under pressures at which they might exist in ocean exoplanets and icy moons, exhibit dynamics that are still poorly understood. Here, 1H-NMR experiments approaching the Mbar range shed light on the symmetrisation of hydrogen
Thomas Meier +3 more
doaj +1 more source
Models of dust around Europa and Ganymede [PDF]
, 2012 We use numerical models, supported by our laboratory data, to predict the dust densities of ejecta outflux at any altitude within the Hill spheres of Europa and Ganymede.
Colwell +40 more
core +2 more sources
Can large icy moons accrete undifferentiated? [PDF]
Icarus, 2014 The apparent moments of inertia of Callisto and Titan inferred from gravity data suggest incomplete differentiation of their interior, commonly attributed to slow and cold accretion. To understand whether such large icy moons can really avoid global melting and subsequent differentiation during their accretion, we have developed a 3D numerical model ...
Monteux, Julien +3 more
openaire +3 more sources
A multi-lander New Frontiers mission concept study for Enceladus: SILENUS
Frontiers in Astronomy and Space Sciences, 2022 Enceladus, with its subsurface ocean, is amongst the top priority targets in the search for life beyond Earth. Following on discoveries from the Cassini mission that Enceladus possesses a global subsurface ocean containing salt and organic compounds ...
Erica Nathan +11 more
doaj +1 more source
Consequences of large impacts on Enceladus' core shape [PDF]
, 2015 International audienceThe intense activity on Enceladus suggests a differentiated interior consisting of a rocky core, an internal ocean and an icy mantle.
Choblet, G +3 more
core +2 more sources
A Passive Probe for Subsurface Oceans and Liquid Water in Jupiter's Icy Moons
, 2014 We describe an interferometric reflectometer method for passive detection of subsurface oceans and liquid water in Jovian icy moons using Jupiter's decametric radio emission (DAM).
Heggy, Essam +5 more
core +1 more source
Polarimetry of Water Ice Particles Providing Insights on Grain Size and Degree of Sintering on Icy Planetary Surfaces [PDF]
, 2018 The polarimetry of the light scattered by planetary surfaces is a powerful tool to provide constraints on their microstructure. To improve the interpretation of polarimetric data from icy surfaces, we have developed the POLarimeter for ICE Samples ...
Cerubini, Romain +4 more
core +4 more sources
A hidden pattern? Common polyextremophilic microbial adaptations in Icy Moon analog environments
Frontiers in Astronomy and Space SciencesThe search for life signatures beyond Earth is one of the main objectives of space exploration. Studies of analogous terrestrial ecosystems have shed light on the limits of life and on the adaptations of microbial communities to thrive in these extreme ...
Sandra Gusi-Martínez +4 more
doaj +1 more source
Icy ocean worlds - astrobiology research in Germany
Frontiers in Astronomy and Space SciencesIcy bodies with subsurface oceans are a prime target for astrobiology investigations, with an increasing number of scientists participating in the planning, development, and realization of space missions to these worlds.
Fabian Klenner +27 more
doaj +1 more source
Prospects for Cryovolcanic Activity on Cold Ocean Planets
The Astrophysical Journal, 2023 We have estimated total internal heating rates and depths to possible subsurface oceans for 17 planets that may be cold ocean planets, low-mass exoplanets with equilibrium surface temperatures and/or densities that are consistent with icy surfaces and a ...
Lynnae C. Quick +4 more
doaj +1 more source