منابع مشابه
Eruptive Volcanism on Saturn’s Icy Moon Dione
Introduction: Although Enceladus has garnered the greatest attention, Saturn’s other icy moons also betray a diverse range of phenomenon (e.g., Rhea‘s ring, Iapetus‘ ridge, Tethys’ fracture). Even in Voyager’s limited global mapping, some cryptic evidence of resurfacing was evident [e.g., 1, 2]. Global mapping by Cassini reveals that a large resurfaced terrain covers much of the leading hemisph...
متن کاملMorphology of fluvial networks on Titan: Evidence for structural control
Although Titan’s surface shows clear evidence of erosional modification, such as fluvial incision, evidence for tectonism has been less apparent. On Earth, fluvial networks with strongly preferred orientations are often associated with structural features, such as faults or joints, that influence flow or erodibility. We delineated and classified the morphologies of fluvial drainages on Titan an...
متن کاملVolcanism on Mercury: evidence from the first MESSENGER flyby.
The origin of plains on Mercury, whether by volcanic flooding or impact ejecta ponding, has been controversial since the Mariner 10 flybys (1974-75). High-resolution images (down to 150 meters per pixel) obtained during the first MESSENGER flyby show evidence for volcanic vents around the Caloris basin inner margin and demonstrate that plains were emplaced sequentially inside and adjacent to nu...
متن کاملOn the state of water ice on saturn's moon Titan and implications to icy bodies in the outer solar system.
The crystalline state of water ice in the Solar System depends on the temperature history of the ice and the influence of energetic particles to which it has been exposed. We measured the infrared absorption spectra of amorphous and crystalline water ice in the 10-50 K and 10-140 K temperature ranges, respectively, and conducted a systematic experimental study to investigate the amorphization o...
متن کاملRadar Scattering from Titan and Saturn’s Icy Satellites Using the Cassini Spacecraft
Titan is the largest moon of Saturn and the second largest moon in the solar system. It has a thick atmosphere rich in nitrogen and hydrocarbons, analogous to the atmosphere of early, prebiotic Earth. This atmosphere inhibits observations of the surface using traditional optical methods. The Cassini-Huygens spacecraft (a joint endeavor of NASA/ESA/ASI) began orbiting Saturn in 2004, with a flyb...
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ژورنال
عنوان ژورنال: Astronomy & Geophysics
سال: 2005
ISSN: 1366-8781,1468-4004
DOI: 10.1093/astrog/46.4.4.7-c