Results 41 to 50 of about 135,263 (156)

Trans-Neptunian and Exosolar Satellites and Dust: Dynamics and Surface Effects [PDF]

, 2013
: Solar system orbital dynamics can offer unique challenges. Impacts of interplanetary dust particles can significantly alter the surfaces of icy satellites and minor planets.

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Beyond Point Masses. III. Detecting Haumea’s Nonspherical Gravitational Field

The Planetary Science Journal
The dwarf planet Haumea is one of the most compelling trans-Neptunian objects to study, hosting two small, dynamically interacting satellites, a family of nearby spectrally unique objects, and a ring system. Haumea itself is extremely oblate due to its 3.
Benjamin C. N. Proudfoot, Darin A. Ragozzine, William Giforos, Will M. Grundy, Mariah MacDonald, William J. Oldroyd   +5 more
doaj   +1 more source

The Orbits of the Inner Neptunian Satellites fromVoyager, Earth-based, andHubble Space TelescopeObservations

The Astronomical Journal, 2004
We present revised orbital elements for the six small Neptunian satellites discovered by Voyager 2. The elements have been determined from a fit to imaging data acquired by the Voyager 2 spacecraft and astrometric observations made at Earth-based observatories and by the Hubble Space Telescope. An assessment of the accuracy of the elements is provided,
R. A. Jacobson, W. M. Owen, Jr.
openaire   +1 more source

Formation of Asteroid (16) Psyche by a Giant Impact

Journal of Geophysical Research: Planets, Volume 131, Issue 1, January 2026.
Abstract Asteroid (16) Psyche is the largest likely metal‐rich asteroid in the Solar System and the target of the NASA Psyche mission. The mission aims to determine whether the asteroid is the core of a differentiated planetesimal that lost its mantle via a giant impact.
Saverio Cambioni, Benjamin P. Weiss, Namya Baijal, Robert Melikyan, Erik Asphaug, John B. Biersteker, Richard P. Binzel, William F. Bottke, Samuel W. Courville, Linda T. Elkins‐Tanton, David J. Lawrence, José M. G. Merayo, Carol A. Raymond, Mark A. Wieczorek, Maria T. Zuber   +14 more
wiley   +1 more source

Major‐Minor‐Trace Element Analyses and Oceanographic Modeling Confirms Circumpolar Transport of the 1962 Protector Shoal Pumice Raft

Journal of Geophysical Research: Oceans, Volume 130, Issue 12, December 2025.
Abstract Pumice rafts derived from submarine eruptions can remain afloat for months or even years, traveling thousands of kilometers on ocean currents. These natural phenomena disperse marine organisms and provide important evidence for submarine volcanism yet are not fully understood.
Alistair J. Monteath, Emma F. Young, Hannah R. S. Dawson, Britta J. L. Jensen, John L. Smellie, Christina J. Manning, Teal R. Riley, Tom A. Jordan, Stephen J. Roberts   +8 more
wiley   +1 more source

Synchronous Rotation in the (120347) Salacia–Actaea System

The Planetary Science Journal
We report on roughly 16 yr of photometric monitoring of the trans-Neptunian binary system (120347) Salacia–Actaea, which provides significant evidence that Salacia and Actaea are tidally locked to the mutual orbital period in a fully synchronous ...
Cameron Collyer, Estela Fernández-Valenzuela, Jose Luis Ortiz, Bryan J. Holler, Benjamin Proudfoot, Nicolás Morales, Rafael Morales, Susan Benecchi, Flavia L. Rommel, Will Grundy, Darin Ragozzine   +10 more
doaj   +1 more source

Pole‐to‐Pole Vertical Ionospheric Profiles at Jupiter From JWST

Journal of Geophysical Research: Space Physics, Volume 130, Issue 8, August 2025.
Abstract We present the first pole‐to‐pole observations of Jupiter's ionosphere, capturing dawn and dusk vertical structure up to 5,000 km altitude using the James Webb Space Telescope (JWST), simultaneous to Juno's radio occultation experiments (ROX) in September 2023.
Paola I. Tiranti, H. Melin, L. Moore, K. L. Knowles, T. S. Stallard, J. O’Donoghue, K. Roberts, K. Mohamed, E. M. Thomas   +8 more
wiley   +1 more source

Irregular Moons Possibly Injected from the Outer Solar System by a Stellar Flyby

The Astrophysical Journal Letters
The irregular moons orbit the giant planets on distant, inclined, and eccentric trajectories, in sharp contrast with the coplanar and quasicircular orbits of the regular moons.
Susanne Pfalzner, Amith Govind, Frank W. Wagner   +2 more
doaj   +1 more source

Influences of Non‐Oberbeck–Boussinesq Effects on Tracer Transport in Icy Ocean Worlds

Journal of Geophysical Research: Planets, Volume 130, Issue 7, July 2025.
Abstract The subsurface oceans on icy satellites are potentially habitable. To understand their habitability, we need to know how tracers with various lifetimes distribute. Convection is the main vehicle for tracer transport, and we expect convection on icy satellites to differ from regular rotating convection, because as pressure increases, water's ...
Shuang Wang, Wanying Kang
wiley   +1 more source

Changes in a scientific concept: what is a planet? [PDF]

, 2007
The need for an explicit and exact definition of a planet has arise out of the growing rate of discovery of Trans-Neptunian Objects (TNOs) with physical and orbital properties comparable with those of Pluto, the smallest planet of the solar system.
Murzi, Mauro
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