Results 81 to 90 of about 89,298 (260)

Post-Cataract Surgery Visual Disturbance in a Retinitis Pigmentosa Patient with Asteroid Hyalosis

Case Reports in Ophthalmology, 2011
A patient with retinitis pigmentosa showed visual disturbances following successful cataract surgery. He had a dense asteroid hyalosis in the eye before cataract surgery. After the surgery he noticed that his vision became worse.
Yoko Jingami, Atsushi Otani, Hiroshi Kojima, Yukiko Makiyama, Nagahisa Yoshimura   +4 more
doaj   +1 more source

Rapid terrestrial weathering of the CI1 carbonaceous chondrite find Oued Chebeika 002

Meteoritics &Planetary Science, EarlyView.
Abstract Alteration of historic CI1 meteorite falls during their curation demonstrates the susceptibility of smectite‐rich carbonaceous chondrites to terrestrial exposure. The discovery of Oued Chebeika 002 in Morocco in June 2024 presents a unique opportunity to document the earliest stages of weathering of a CI1 find.
Martin R. Lee, Jasper Glazer
wiley   +1 more source

Optical observations of NEA 162173 (1999 JU3) during the 2011-2012 apparition

, 2013
Near-Earth asteroid 162173 (1999 JU3) is a potential target of two asteroid sample return missions, not only because of its accessibility but also because of the first C-type asteroid for exploration missions.
Byun, Y. -I., Choi, Y. -J., Ishiguro, M., Kaplan, M., Kim, M. -J., Kuroda, D., Moon, H. -K., Mottola, S., Takahashi, J., Warjurkar, D. S.   +9 more
core   +1 more source

A Large Mass on the Thigh

JEADV Clinical Practice, EarlyView.
Claudine Howard‐James, Caoimhe Brennan, Gregg Murray, Amy Gillis, Stephen Crowther, Kevin Molloy   +5 more
wiley   +1 more source

New evidence on the formation conditions of the Libyan Desert Glass (Western Egypt): Clues from a dendritic zircon inclusion

Meteoritics &Planetary Science, EarlyView.
Abstract Libyan Desert Glass (LDG) is an ~29 million years old, silica‐rich glass found in Western Egypt. Whether this glass formed in an impact cratering context associated with the hypervelocity collision of a cometary/asteroidal body or radiative heating during an airburst is debated. Determination of the formation temperatures and pressures of rare
Niccolò Magnani, Enrico Mugnaioli, Sofia Lorenzon, Lidia Pittarello, Tatiana E. Gorelik, Matteo Masotta, Luigi Folco   +6 more
wiley   +1 more source

Revisiting the Numerical Evaluation and Visualization of the Gravity Fields of Asteroid 4769 Castalia Using Polyhedron and Harmonic Expansions Models

Applied Sciences
For the convenience of comparison with previous literature, the gravity calculations are revisited for the Asteroid 4769 Castalia, but with extensions on its surface and on intersecting planes and spheres around it, using the polyhedron and harmonic ...
Weiduo Hu, Tao Fu, Chang Liu
doaj   +1 more source

Cooperative planning for multi-site asteroid visual coverage [PDF]

, 2021
Sumeet Gajanan Satpute, Per Bodin, George Nikolakopoulos   +2 more
openalex   +1 more source

Long-term Stable Equilibria for Synchronous Binary Asteroids

, 2011
Synchronous binary asteroids may exist in a long-term stable equilibrium, where the opposing torques from mutual body tides and the binary YORP (BYORP) effect cancel.
Goldreich, Goldreich, Love, McMahon, Murray, Pravec, Pravec, Ćuk   +7 more
core   +1 more source

The effect of early diagenetic processes on the quantification of fossil micrometeorite abundance and flux in the geological record

Meteoritics &Planetary Science, EarlyView.
Abstract Fossil micrometeorites (MMs) recovered from lithified sedimentary rocks, particularly iron‐rich (I‐type) cosmic spherules (CSs) provide valuable insights into past dust‐forming events. Their abundances, when combined with estimates of local sedimentation rates can be used to reconstruct the flux of extraterrestrial dust.
Isabelle S. Mattia, Matthew J. Genge, Martin D. Suttle   +2 more
wiley   +1 more source

On the Particular Dynamics of Rubble-Pile Asteroid Rotation Following Projectile Impact on the Surface During Planetary Approach

Mathematics
The main motivation of this research is the semi-analytical exploration of the dynamics of an asteroid that is attacked while approaching a planet (with an inelastic collision of the projectile normally to the surface of the asteroid occurring just ...
Sergey Ershkov
doaj   +1 more source