Results 21 to 30 of about 25,199 (146)

A collisionless scenario for Uranus tilting

, 2010
The origin of the high inclination of Uranus' spin-axis (Uranus' obliquity) is one of the great unanswered questions about the Solar system. Giant planets are believed to form with nearly zero obliquity, and it has been shown that the present behaviour ...
Boué, Laskar, Murray-Clay, Ward
core   +3 more sources

A Localized and Surprising Source of Energetic Ions in the Uranian Magnetosphere Between Miranda and Ariel

Geophysical Research Letters, 2023
In situ exploration of Uranus has been limited to a single flyby encounter by the Voyager 2 spacecraft in January 1986. Nonetheless, new investigation has led to significant questions about the origin of energetic ions observed in the region between its ...
Ian J. Cohen, Drew L. Turner, Peter Kollmann, George B. Clark, Matthew E. Hill, Leonardo H. Regoli, Daniel J. Gershman   +6 more
doaj   +1 more source

The Orbits of Uranus, Its Satellites and Rings, the Gravity Field of the Uranian System, and the Orientation of the Poles of Uranus and Its Satellites

The Astronomical Journal
R. A. Jacobson determined the orbits of the Uranian satellites, the masses of Uranus and its satellites, and the orientation of the pole of Uranus from Earth-based astrometry, Earth-based ring occultations, and observations acquired with the Voyager 2 ...
Robert A. Jacobson, Ryan S. Park
doaj   +1 more source

DATA PROCESSING OF PLATES CONTAINING IMAGES OF URANUS AND NEPTUNE FROM UKRVO DIGITAL ARCHIVE: STRUCTURE, QUALITY ANALYSIS

Odessa Astronomical Publications, 2016
To use accumulated resources of UkrVO digital archive, analysis of the available photographic plates containing images of Uranus and Neptune was conducted.
Yu. Protsyuk, O. Yizhakevych, O. Kovylianska, S. Protsyuk, V. Andruk, S. Kashuba, L. Kazantseva   +6 more
doaj   +1 more source

Assessing the contribution of Centaur impacts to ice giant luminosities

, 2015
Voyager 2 observations revealed that the internal luminosity of Neptune is an order of magnitude higher than that of Uranus. If the two planets have similar interior structures and cooling histories, the luminosity of Neptune can only be explained by ...
Dodson-Robinson, Sarah E.
core   +1 more source

Predictions of Auroral Electron Precipitation and Joule Heating at Uranus

Geophysical Research Letters
The precipitation of electrons and Joule heating are key processes through which energy is transferred from Uranus' magnetosphere to its upper atmosphere. These processes drive atmospheric ionization, thermospheric heating, and auroral emission at Uranus.
Daniel J. Gershman, George Clark
doaj   +1 more source

Preliminary Proof of the Feasibility of a Novel Mission Concept and Spacecraft Trajectory for Exploring Uranus with Small Satellites

Aerospace
Following recommendations from the 2023–2032 Planetary Science and Astrobiology Decadal Survey, we propose a novel Uranus exploration mission that is centered on using constellations of small spacecraft to observe the Uranus system.
Dylan Barnes, Paula do Vale Pereira
doaj   +1 more source

Terrestrial Analogs to Titan for Geophysical Research

Reviews of Geophysics, Volume 64, Issue 2, June 2026.
Abstract Saturn's moon Titan exhibits remarkable parallels to the Earth in many geophysical and geological processes not found elsewhere in the solar system at the present day. These include a nitrogen atmosphere with a condensible gas—methane—replacing the Earth's water, leading to an active meteorology with rainfall and surface manifestations ...
Conor A. Nixon, Samuel Birch, Audrey Chatain, Charles Cockell, Kendra K. Farnsworth, Peter M. Higgins, Stéphane Le Mouélic, Rosaly M. C. Lopes, Michael J. Malaska, Mohit Melwani Daswani, Kelly E. Miller, Catherine D. Neish, Olaf G. Podlaha, Jani Radebaugh, Lauren R. Schurmeier, Ashley Schoenfeld, Krista M. Soderlund, Anezina Solomonidou, Christophe Sotin, Nicholas A. Teanby, Tetsuya Tokano, Steven D. Vance   +21 more
wiley   +1 more source

New indication for a dichotomy in the interior structure of Uranus and Neptune from the application of modified shape and rotation data

, 2012
Since the Voyager fly-bys of Uranus and Neptune, improved gravity field data have been derived from long-term observations of the planets' satellite motions, and modified shape and solid-body rotation periods were suggested. A faster rotation period (-40
Anderson, Borucki, Brozovic, Chau, de Bergh, de Bergh, Dessler, Fegley, Fortney, Fortney, Fortney, Gautier, Graboske, Guillot, Guillot, Helled, Helled, Helled, Hori, Hubbard, Hubbard, Hubbard, Hubbard, J.J. Fortney, Jacobson, Jacobson, Kane, Karkoschka, Leconte, Lindal, Lindal, Lodders, Lorenzen, Lorenzen, Marley, N. Nettelmann, Nettelmann, Nettelmann, Podolak, Podolak, Podolak, R. Helled, R. Redmer, Redmer, Saumon, Stanley, Wilson, Wilson   +47 more
core   +1 more source

Wide‐Range Adaptive Metal Oxide for Hydrogen Sulfide Detection From Earth to Space‐Like Environments

Advanced Science, Volume 13, Issue 19, 2 April 2026.
This work presents a gas sensing platform based on Cu‐doped SnO2 microspheres that operates reliably from ambient to space‐like conditions. The sensor maintains performance across vacuum and cryogenic environments, bypassing traditional oxygen‐mediated mechanisms, utilizing direct chemisorption and interfacial charge transfer.
Xi Chen, Jiaxin Chen, Yanghui Liu, Junhao Cao, Yang Yuan, Kaixin Chen, Yilang Ye, Tongshuai Yang, Yongqing Fu, Wei Luo   +9 more
wiley   +1 more source