Results 21 to 30 of about 89,600 (153)

Damping-Antidamping Effect on Comets Motion [PDF]

, 2013
We make an observation about Galilean transformation on a 1-D mass variable systems which leads us to the right way to deal with mass variable systems.
Juarez, E. M., Lopez, G. V.
core   +1 more source

Archives of impact: The politics of craters on Earth

Geographical Research, Volume 64, Issue 2, May 2026.
This paper examines Earth’s 195 confirmed impact craters as archives, exploring their cataloguing and presentation as heritage sites. It argues Western scientific framings using military language and emphasising catastrophe overlook settler colonialism’s violent histories and marginalise indigenous earth‐sky cosmologies.
Gareth Hoskins
wiley   +1 more source

Characterization of Mercury's Atomic and Molecular Hydrogen Exosphere and the First Detection of H2 Ions

Journal of Geophysical Research: Planets, Volume 131, Issue 3, March 2026.
Abstract From 1974 to 1975, the Mariner 10 spacecraft studied Mercury's environment during three flybys and detected hydrogen, helium, and possibly atomic oxygen in the exosphere using its ultraviolet spectrometer, but no molecular hydrogen. Based on the sensitivity of the occultation instrument, an upper limit for the H2 ${\mathrm{H}}_{2}$ surface ...
F. Weichbold, D. Schmid, H. Lammer, M. Volwerk, M. Scherf, N. V. Erkaev, A. Varsani, C. Simon Wedlund, C. Mazelle   +8 more
wiley   +1 more source

Evidence of an Extended Alfvén Wing System at Enceladus: Cassini's Multi‐Instrument Observations

Journal of Geophysical Research: Space Physics, Volume 131, Issue 2, February 2026.
Abstract We report in situ evidence for Enceladus' Alfvén wing system and its coupling with Saturn's ionosphere, based on multi‐instrument observations from the Cassini spacecraft. Analysis of 36 events, including 13 from non‐flyby paths, confirms the existence of a Main Alfvén Wing (MAW) current system generated at Enceladus, and associated Reflected ...
L. Z. Hadid, T. Chust, J.‐E. Wahlund, M. W. Morooka, E. Roussos, O. Witasse, J. Rabia, D. Pisa, K. Kim, N. J. T. Edberg, A. M. Rymer, L. Lamy, S. Kotsiaros, S. Aizawa, A. Jeandet, R. Modolo, N. André, P. Canu, C. F. Bowers, X. Jia, A. J. Coates, G. H. Jones, A. Parsec‐Wallis, O. Agiwal, M. K. G. Holmberg, Q. Nénon, H. Cao, W. S. Kurth, M. K. Dougherty   +28 more
wiley   +1 more source

Dating the execution of John the Baptist and the crucifixion of Jesus Christ

RUDN Journal of World History
The study is devoted to clarifying the chronology of such significant events of gospel history as the execution of John the Baptist and the crucifixion of Jesus Christ.
Vladimir O. Nikishin
doaj   +1 more source

Modelling polarization properties of comet 1P/Halley using a mixture of compact and aggregate particles

, 2011
Recently, the result obtained from `Stardust' mission suggests that the overall ratio of compact to aggregate particles is 65:35 (or 13:7) for Comet 81P/Wild 2 (Burchell et al. 2008).
A. K. Sen, A. Suklabaidya, Bastien, Bertini, Bockelée-Morvan, Brownlee, Burchell, Chernova, D. Paul, Das, Das, Das, Das, Das, Das, Dorschner, Fomenkova, Fulle, Ganesh, Greenberg, Gural’Chuk, H. S. Das, Hadamcik, Hadamcik, Hanner, Hanner, Hayward, Hörz, Jenniskens, Jessberger, Jessberger, Kikuchi, Kimura, Kolokolova, Lamy, Lasue, Le Borgne, Mackowski, Mazets, Meakin, Meakin, Mishchenko, Moreno, Muinonen, Muinonen, Mukai, Mukai, Paul, Petrova, Sen, Shen, Shen, Tishkovets, Wooden, Wooden, Zolensky   +55 more
core   +1 more source

Constructed Response Paragraph Jigsaw Puzzle Test for Measuring Structure Building Ability

Applied Cognitive Psychology, Volume 40, Issue 1, January/February 2026.
ABSTRACT This study examined whether paragraph jigsaw puzzle (PJP) test can be used to measure structure building ability, the ability to construct cohesive mental representations. We developed a constructed‐response version of the PJP test and scored it with a string‐similarity algorithm that allows for partial credit.
Hwimin Kim, JungYeon Park, Min Hae Song, Jooyong Park   +3 more
wiley   +1 more source

A Thermal Origin to the Asymmetry of the Permanent Dust Cloud at the Moon

Journal of Geophysical Research: Planets, Volume 130, Issue 10, October 2025.
Abstract The Moon's surface, lacking an atmosphere, is continually bombarded by high‐speed micro‐meteoroids, creating a highly porous regolith composed of very fine grains. This regolith's porosity decreases with depth due to compression. Besides creating vapor and melt, micro‐meteoroid impacts eject lunar dust, redistributing regolith grains, which ...
Sébastien Verkercke, Cem Berk Senel, Robert Luther, Menelaos Sarantos, Elena Martellato, Gareth S. Collins, Lisa Krämer Ruggiu, Steven Goderis, Özgür Karatekin, Philippe Claeys   +9 more
wiley   +1 more source

The Spatial Distribution Of OH And CN Radicals In The Coma Of Comet Encke [PDF]

, 2011
Multiple potential parent species have been proposed to explain CN abundances in comet comae, but the parent has not been definitively identified for all comets.
Cochran, Anita L., Dorman, Garrett R., Ihalawela, Chandrasiri A., Pierce, Donna M.   +3 more
core   +1 more source

UV–Vis Spectra of Carbonic Acid: Rationalizing Experimental Redshifts between Monomer and Bulk based on (H2CO3)n Calculations

ChemPhysChem, Volume 26, Issue 18, September 19, 2025.
In bulk carbonic acid (e.g., in interstellar icy dust grains) cluster formation produces two distinct UV‐Vis spectral features redshifted by ≈2 eV (25 nm) and by ≈5 eV (80 nm) compared to gas phase single molecule carbonic acid 's adiabatic ionization energy. Theory and experiment were used to investigate the origin of these shifts.
Dennis F. Dinu, Bastian Klein, Chaojiang Zhang, Radu A. Talmazan, Thomas Loerting, Hinrich Grothe, Ralf I. Kaiser, Maren Podewitz   +7 more
wiley   +1 more source