Results 111 to 120 of about 1,104 (222)

Tidal Seismicity in the Moon and Implications for the Rocky Interior of Europa

open access: yesThe Planetary Science Journal
Seismology is a powerful tool for probing the deep interiors of planetary bodies. Just as deep moonquakes triggered by Earth’s tides occur on the Moon, as observed by the Apollo seismometers, icy moons of the giant planets may also have seismically ...
Laurent Pou   +5 more
doaj   +1 more source

Studying the Formation, Evolution, and Habitability of the Galilean Satellites

open access: yes, 2013
Highly sensitive, highmass resolution mass spectrometry is an important in situ tool for the study of solar system bodies. In this talk we detail the science objectives, develop the rationale for the measurement requirements, and describe potential ...
Mousis, O.   +6 more
core  

Mass Movement and Landform Degradation on the Icy Galilean Satellites: Results of the Galileo Nominal Mission

open access: yes, 1999
The Galileo mission has revealed remarkable evidence of mass movement and landform degradation on the icy Galilean satellites of Jupiter. Weakening of surface materials coupled with mass movement reduces the topographic relief of landforms by moving ...
Chuang, Frank C.   +13 more
core   +1 more source

Polarimetric observations of the Galilean satellites near opposition in 2011

open access: yes, 2012
We present results of the new polarimetric observations of the Galilean satellites Io, Ganymede, Europe, and Callisto carried out on October 21 - November 1, 2011.
Psarev, V.N.   +6 more
core   +1 more source

On the Divergent Evolution of Io and Europa as Primordial Ocean Worlds

open access: yesThe Astrophysical Journal
The Galilean moons exhibit a decrease in bulk density with distance from Jupiter, which may reflect differences in evolutionary paths and water loss. Early in its history, Jupiter was more luminous, which may have driven substantial atmospheric escape on
Yannis Bennacer   +2 more
doaj   +1 more source

Juno spacecraft gravity measurements provide evidence for normal modes of Jupiter. [PDF]

open access: yesNat Commun, 2022
Durante D   +14 more
europepmc   +1 more source

Spectroscopic Mapping of Callisto with HST/STIS and Implications for its Surface Composition

open access: yesThe Planetary Science Journal
We present global, spatially resolved ultraviolet–visible spectra of Callisto obtained with the Hubble Space Telescope/Space Telescope Imaging Spectrograph and explore possible compositions of Callisto’s surface material.
M. Ryleigh Davis   +3 more
doaj   +1 more source

The Phemu 2015 campaign of observations of the mutual events of the Galilean satellites of Jupiter

open access: yes, 2014
International audienceFrom September 2014 to June 2015 mutual events of the Galilean satellites will occur around the Jovian equinox occurring on February 6, 2015.
Saquet, Eléonore   +3 more
core  

A Direct Simulation Monte Carlo–Driven Photochemical Model of Callisto’s Ionosphere

open access: yesThe Planetary Science Journal
Here we present a photochemical model of Callisto’s ionosphere with inputs supplied by a direct simulation Monte Carlo model of its neutral atmosphere. We compare a model that considers interactions with photons as the sole external ionization mechanism ...
Shane R. Carberry Mogan   +3 more
doaj   +1 more source

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