Results 51 to 60 of about 25,055 (287)

Water Transport from Enceladus to the Rings

The Planetary Science Journal
Enceladus continuously ejects approximately 300 kg s ^−1 of water vapor from its south polar regions, forming an extensive neutral gas torus around Saturn.
Ian-Lin Lai, Hua-Shan Shih, Wei-Ling Tseng, Wing-Huen Ip, Jong-Shinn Wu   +4 more
doaj   +1 more source

Binary Darboux Transformations in Bidifferential Calculus and Integrable Reductions of Vacuum Einstein Equations

Symmetry, Integrability and Geometry: Methods and Applications, 2013
We present a general solution-generating result within the bidifferential calculus approach to integrable partial differential and difference equations, based on a binary Darboux-type transformation.
Aristophanes Dimakis, Folkert Müller-Hoissen   +1 more
doaj   +1 more source

Modeling enstatite chondrites: Reduced rocks with a pinch of oxidized material (affected by varying H2O(g)) derived from planetesimals shocked during the epoch of giant–planet migration

Meteoritics &Planetary Science, EarlyView.
Abstract The O‐, N‐, Mo‐, Ru‐, Os‐, Cr‐, Ti‐, Ni‐, Fe‐, Nd‐, Ca‐, Zn‐, Sr‐, and Mg‐isotopic compositions of enstatite chondrites are essentially identical to those of the Earth and Moon. These correspondences suggest enstatite chondrites formed at ≈1 AU as the only known chondrite groups that accreted in the vicinity of a major planet. Bulk Earth has a
Alan E. Rubin
wiley   +1 more source

Cassini observations of the thermal plasma in the vicinity of Saturn's main rings and the F and G rings [PDF]

, 2005
The ion mass spectrometer on Cassini detected enhanced ion flux near Saturn's main rings that is consistent with the presence of atomic and molecular oxygen ions in the thermal plasma.
Baragiola, RA, Coates, AJ, Crary, FJ, Delapp, DM, Fish, BA, Francis, MF, Gurnett, DA, Johnson, RE, Kurth, WS, Reisenfeld, DB, Thomsen, MF, Tokar, RL, Young, DT   +12 more
core   +1 more source

PRESSURIZATION SYSTEM OF THE TANK WITH OXYGEN VAPORS WITH CLEANING FROM COMBUSTION PRODUCTS

Авіаційно-космічна техніка та технологія, 2017
Considered with respect to modern launch vehicles, the risks of using the once widespread systems of pressurization of tanks with liquid oxygen by its hot vapors.
Юрій Олексійович Мітіков, Іван Дмитрович Дубровський   +1 more
doaj   +1 more source

The brightening of Saturn’s F ring [PDF]

Icarus, 2012
Image photometry reveals that the F ring is approximately twice as bright during the Cassini tour as it was during the Voyager flybys of 1980 and 1981. It is also three times as wide and has a higher integrated optical depth. We have performed photometric measurements of more than 4,800 images of Saturn's F ring taken over a five-year period with ...
French, Robert S., Showalter, Mark R., Sfair, Rafael, Argueelles, Carlos A., Pajuelo, Myriam, Becerra, Patricio, Hedman, Matthew M., Nicholson, Philip D.   +7 more
openaire   +3 more sources

Laser Ablation Sampling With Low‐Power Plasma: A LA‐MIP‐MS Instrument for Spaceflight

Rapid Communications in Mass Spectrometry, Volume 40, Issue 3, 15 February 2026.
ABSTRACT Rationale Inductively coupled plasma (ICP) is a commonly used ion source for mass spectrometry‐based chemical analysis of a wide range of materials. Traditional ICP ion sources use high power (> 1000 W) and significant gas flow (> 10 L/min), rendering them unsuitable for spaceflight, as they are too resource‐intensive for planetary spacecraft.
Benjamin J. Farcy, Jacob Graham, Madeline Raith, Ricardo Arevalo Jr., Mazdak Taghioskoui, Sierra Budinoff, Amy McAdam, Jane Lee, Ryan M. Danell, Desmond A. Kaplan, Cynthia Gundersen, William F. McDonough   +11 more
wiley   +1 more source

Uranus' Long‐Term Thermospheric Cooling Is Unlikely to Be Primarily Driven by the Solar Wind

Geophysical Research Letters, Volume 52, Issue 24, 28 December 2025.
Abstract Over the last 40 yrs, Uranus' thermospheric temperature has decreased by ∼8 K/yr. Here we show that this is less likely to be driven by solar wind kinetic power than previously thought. We determine that the solar wind kinetic power at Uranus has been increasing since the start of solar cycle 24 in 2009, while Uranus's thermospheric ...
Jamie M. Jasinski, Henrik Melin, James A. Sinclair, Sophia Zomerdijk‐Russell, Nick Achilleos, Carol Paty   +5 more
wiley   +1 more source

DNA‑Directed Assembly of Photonic Nanomaterials for Diagnostic and Therapeutic Applications

Advanced Materials, Volume 37, Issue 49, December 10, 2025.
DNA‐directed assembly offers a powerful strategy for constructing structured photonic nanomaterials with precise spatial control. This review provides a comprehensive overview of recent advancements in DNA‐assembled photonic nanomaterials for diagnostics and therapeutics, highlighting key design principles, functionalization strategies, and optical ...
Longjiang Ding, Bing Liu, Andreas Peil, Sisi Fan, Jie Chao, Na Liu   +5 more
wiley   +1 more source

A Small Pathbreaking Spacecraft: Giants of Space Research (Bernard Blake, Dieter Hovestadt, and Edward Stone)

Perspectives of Earth and Space Scientists, Volume 6, Issue 1, December 2025.
Abstract The Solar, Anomalous, and Magnetospheric Explorer (SAMPEX) mission launched in July 1992 was the first NASA “Small Explorer” project. It had the goal to show how space missions could be developed much more rapidly than had become the situation in the 1980s and 1990s.
D. N. Baker, G. M. Mason
wiley   +1 more source