Results 81 to 90 of about 1,966 (217)

The Bombardment History of the Giant Planet Satellites

open access: yesThe Planetary Science Journal
The origins of the giant planet satellites are debated, with scenarios including formation from a protoplanetary disk, sequential assembly from massive rings, and recent accretion after major satellite–satellite collisions.
William F. Bottke   +9 more
doaj   +1 more source

The theory of the divisions in Saturn's rings [PDF]

open access: yesPhilosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 1941
Abstract In an earlier paper on this subject the author (1921) proposed a theory of the rings which showed satisfactory agreement with the observed measurements of the rings. The mathematical method was, however, subjected to criticism.
openaire   +2 more sources

The Mariner Jupiter/Saturn ring occultation experiment

open access: yes, 1974
Radio occultation measurements of Saturn's rings as measured by the Mariner Jupiter/Saturn radio science experiment are reported. These signal measurements provide information on size, distribution, and density of particle material found in the ...
Eshleman, V. R.
core  

Analysis of Bending Waves in Saturn\u27s Rings

open access: yes, 2021
Saturn\u27s rings are a complex, dynamic system that can provide unique insight into the structure and features of the planet and surrounding system.
Orozco Vega, Claudia Denise
core  

Rough Estimates of Solar System Gravitomagnetic Effects in Post-Newtonian Gravity

open access: yesUniverse
In order to properly describe the gravity interactions, including the mass currents, in gravitomagnetism, we construct four Maxwell-type gravitational equations that are shown to be analogs of the Maxwell equations in electromagnetism.
Soon-Tae Hong
doaj   +1 more source

Diving within Saturn's rings [PDF]

open access: yesScience, 2018
![Figure][1] A diagram of Cassini's final orbits (blue curves), showing the last ring-grazing orbit and the 22 Grand Finale orbits. IMAGE: NASA JET PROPULSION LABORATORY Launched in 1997, the Cassini spacecraft arrived at Saturn in 2004 and spent the following 12 years orbiting far outside the planet's rings.
openaire   +2 more sources

Almost Periodic Hill's Equation and the Rings of Saturn [PDF]

open access: yes, 1981
Incommensurate perturbations of classical orbits lead to an almost periodic Hill's operator whose spectrum, we argue, is a Cantor set, but one with large Lebesgue measure.
Simon, Barry, Avron, Joseph E.
core  

The Mariner Jupiter/Saturn photopolarimeter experiment

open access: yes, 1974
Observations of Saturn's rings by the Mariner Jupiter/Saturn photopolarimeter are studied. From these observations attempts were made to: (1) determine the size, shape, albedo, distribution, and orientation of particles in the rings, (2) measure ...
Lillie, C. F.
core  

Conclusions and recommendations: Exploration of the Saturn system

open access: yes, 1978
Saturn missions have the following principal goals, in order of importance: (1) Intensive investigation of the atmosphere of Saturn; (2) determination of regional surface chemistry and properties of the surface features of satellites and properties of ...
Hunten, D. M.
core  

The Mariner Jupiter/Saturn visual imaging system

open access: yes, 1974
Attempts were made to determine the spatial distribution of materials and brightness temperature of Saturn's rings using observations made by the visual imaging system of the Mariner Jupiter/Saturn ...
Smith, B. A.
core  

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