Results 51 to 60 of about 1,113 (144)

Disk resolved studies of the optical properties and physical nature of the surfaces of the outer planet satellites [PDF]

The spatially resolved albedo, color, compaction state, roughness, and constituent particle sizes of the surfaces of the satellites of Saturn, Uranus, and Jupiter provide important constraints in understanding the geologic evolution and relevant exogenic
Buratti, Bonnie J., Johnson, T. V., Mosher, J. A.   +2 more
core   +1 more source

Constraining Ocean and Ice Shell Thickness on Miranda from Surface Geological Structures and Stress Modeling

The Planetary Science Journal
Images from the Voyager 2 mission revealed the small Uranian satellite Miranda to be a complex, dynamic world. This is exemplified by signs of recent geological activity, including an extensive fault system and the mysterious coronae.
Caleb Strom, Tom A. Nordheim, D. Alex Patthoff, Sherry K. Fieber-Beyer   +3 more
doaj   +1 more source

Plasma Environment, Radiation, Structure, and Evolution of the Uranian System (PERSEUS): A Dedicated Orbiter Mission Concept to Study Space Physics at Uranus. [PDF]

Space Sci Rev, 2023
Cohen IJ, Smith EJ, Clark GB, Turner DL, Ellison DH, Clare B, Regoli LH, Kollmann P, Gallagher DT, Holtzman GA, Likar JJ, Morizono T, Shannon M, Vodusek KS.   +13 more
europepmc   +1 more source

Observations of Uranus' satellites: Bibliography and literature search [PDF]

A literature search has yielded more than 10,000 observations of the satellites of Uranus made from 1787 to 1985. The type (photographic, micrometer) and the number of observations are tabulated in 5 year increments and a complete bibliography is ...
Jacobson, R. A.
core   +1 more source

Leveraging Ceres to Gain Insights into the Candidate Ocean Worlds of Umbriel and Oberon That Orbit Uranus

The Planetary Science Journal
Ceres, located in the asteroid belt, exhibits intriguing parallels with two of the large Uranian satellites: Umbriel and Oberon. These similarities include size, bulk compositions, and dominantly radiogenic internal heat sources.
Jennifer E. C. Scully, C. Adeene Denton, Julie C. Castillo-Rogez, Michael M. Sori, Erin J. Leonard, Chloe Beddingfield, Richard Cartwright, Catherine M. Elder, Karl L. Mitchell, Tom A. Nordheim   +9 more
doaj   +1 more source

RESONANCES, CHAOS, AND SHORT-TERM INTERACTIONS AMONG THE INNER URANIAN SATELLITES

The Astronomical Journal, 2015
The Portia group of Uranian satellites, representing 9 of the planet’s 13 tiny innermost moons, form a densely packed dynamical system. Hubble Space Telescope observations indicate that their orbits have changed significantly over two decades, and long-term numerical integrations show that their orbits are unstable over millions of years.
Richard G. French, Rebekah I. Dawson, Mark R. Showalter   +2 more
openaire   +1 more source

Thermal Oxidation Reaction between NH3 and O3: Low-temperature Formation of an -bearing Salt

The Planetary Science Journal
NH _3 has long been predicted to be an important component of outer solar system bodies, yet detection of this compound suggests a low abundance or absence on many objects where it would be expected. Here, we demonstrate that a thermally driven oxidation
Patrick D. Tribbett, Mark J. Loeffler
doaj   +1 more source

Compositions and Interior Structures of the Large Moons of Uranus and Implications for Future Spacecraft Observations. [PDF]

J Geophys Res Planets, 2023
Castillo-Rogez J, Weiss B, Beddingfield C, Biersteker J, Cartwright R, Goode A, Melwani Daswani M, Neveu M.   +7 more
europepmc   +1 more source

Informed Design of a Gravity Science Experiment for the Future Geophysical Investigation of the Uranian Moons

The Planetary Science Journal
The outer solar system beyond Saturn remains unexplored by dedicated orbital missions. With a launch window opening in 2029, the Uranus Orbiter and Probe (UOP) mission has been prioritized as a NASA Flagship mission for the next decade (2023–2032) to ...
Valerio Filice, Gael Cascioli, Sébastien Le Maistre, Rose-Marie Baland, Antony Trinh, Erwan Mazarico, Sander Goossens   +6 more
doaj   +1 more source

Orbital dynamics of the Uranian satellites based on Voyager data [PDF]

The satellites of Uranus all have significant non-zero eccentricities and in the case of Miranda a significant inclination as well. The Voyager 2 encounter with Uranus in January 1986, provided more accurate estimates of the masses and sizes of the ...
Plescia, J. B.
core   +1 more source