Results 71 to 80 of about 10,898 (231)

Microgravity‐induced changes in skeletal muscle and possible countermeasures: What we can learn from bed rest and human space studies

Experimental Physiology, EarlyView.
Abstract Despite exercise countermeasures to sustain health and performance in spaceflight, complete maintenance of muscle mass and functions in microgravity is still not possible for most astronauts. The principal cause of the limited effectiveness of existing exercise countermeasures is the difficulty in achieving full loading forces in space.
Alessandra Bosutti, Bergita Ganse, Nicola A. Maffiuletti, Rob C. I. Wüst, Gustav J. Strijkers, Andy Sanderson, Hans Degens   +6 more
wiley   +1 more source

An Earth Encounter as the Cause of Chaotic Dynamics in Binary Asteroid (35107) 1991VH

The Planetary Science Journal
Among binary asteroids, (35107) 1991VH stands out as unique given the likely chaotic rotation within its secondary component. The source of this excited dynamical state is unknown. In this work, we demonstrate that a past close encounter with Earth could
Alex J. Meyer, Oscar Fuentes-Muñoz, Ioannis Gkolias, Kleomenis Tsiganis, Petr Pravec, Shantanu Naidu, Daniel J. Scheeres   +6 more
doaj   +1 more source

Deep Learning for Navigation of Small Satellites About Asteroids: An Introduction to the DeepNav Project [PDF]

, 2023
Carmine Buonagura, Mattia Pugliatti, Vittorio Franzese, Francesco Topputo, A. Zeqaj, Marco Zannoni, Mattia Varile, Ilaria Bloise, Federico Fontana, Francesco Rossi, Lorenzo Feruglio, Mauro Cardone   +11 more
openalex   +1 more source

Orbital and Physical Characterization of Asteroid Dimorphos Following the DART Impact

The Planetary Science Journal
The Double Asteroid Redirection Test (DART) mission impacted Dimorphos, the satellite of binary near-Earth asteroid (65803) Didymos, on 2022 September 26 UTC.
Shantanu P. Naidu, Steven R. Chesley, Nicholas Moskovitz, Cristina Thomas, Alex J. Meyer, Petr Pravec, Peter Scheirich, Davide Farnocchia, Daniel J. Scheeres, Marina Brozovic, Lance A. M. Benner, Andrew S. Rivkin, Nancy L. Chabot   +12 more
doaj   +1 more source

Feasibility Analysis of Autonomous Orbit Determination and Gravity-Field Recovery around Asteroids Using Inter-Satellite Range Data [PDF]

, 2023
Haohan Li, Xiyun Hou
openalex   +1 more source

Futures of Everyday Life: A Qualitative Content Analysis of Future Personas in Scenarios

FUTURES &FORESIGHT SCIENCE, Volume 8, Issue 1, April 2026.
ABSTRACT Scenario reports, holding a long‐standing tradition in foresight and futures studies, act as an essential document for organizations to prepare for possible, plausible, and alternative futures. Focusing on descriptions and representations of everyday life, we examined 29 future persona narratives from six publications—covering a wide field ...
Gerhard Schönhofer, Pauli Komonen, Jan Oliver Schwarz, Laura Bechthold   +3 more
wiley   +1 more source

Significantly high polarization degree of the very low-albedo asteroid (152679) 1998 KU$_\mathrm{2}$

, 2017
We present a unique and significant polarimetric result regarding the near-Earth asteroid (152679) 1998 KU$_\mathrm{2}$ , which has a very low geometric albedo.
Hasegawa, Sunao, Imai, Masataka, Ishiguro, Masateru, Kuramoto, Kiyoshi, Kuroda, Daisuke, Naito, Hiroyuki, Sato, Mitsuteru, Sekiguchi, Tomohiko, Usui, Fumihiko, Watanabe, Makoto   +9 more
core   +1 more source

The Magnetic Signature of Stress in Rocks

Geophysical Research Letters, Volume 53, Issue 3, 16 February 2026.
Abstract Magnetic signatures preserved in rocks have long provided insight into Earth's evolution, revealing processes from plate tectonics to the habitability of Earth. While large impacts are known to impose extreme stresses (>1 GPa) and heat that fundamentally alters magnetic records, lower stresses typical of earthquakes have been considered ...
B. R. Kugabalan, T. M. Mitchell, A. R. Muxworthy, W. Williams, H. Gregov, F. M. Aben, D. P. Dobson, U. D. Bellon, P. G. Meredith   +8 more
wiley   +1 more source

An Updated Shape Model of Dimorphos from DART Data

The Planetary Science Journal
Dimorphos was the target of the Double Asteroid Redirection Test (DART) mission. This paper summarizes the properties of an updated shape model of Dimorphos, describes the differences between the updated shape model and an earlier version published by ...
R. Terik Daly, Carolyn M. Ernst, Olivier S. Barnouin, Robert W. Gaskell, Hari Nair, Harrison Agrusa, Nancy L. Chabot, Andrew F. Cheng, Elisabetta Dotto, Elena Mazzotta Epifani, Raymond C. Espiritu, Tony L. Farnham, Eric E. Palmer, Petr Pravec, Andrew S. Rivkin, Dany C. Waller, Angelo Zinzi, the DART and LICIACube teams   +17 more
doaj   +1 more source

Disintegration and Skipping Dynamics of Bilobate‐Shaped Meteoroids for Generating Ultra‐Long Strewn Fields

Earth and Space Science, Volume 13, Issue 2, February 2026.
Abstract The longest known Aletai meteorite belt presents a unique phenomenon in meteoroid dynamics. To investigate its formation mechanism, this study introduces a bilobate‐shaped meteoroid model, emphasizing aerodynamic interactions and structure evolution.
Haoyu Li, Ziwen Li, Qingbo Gan, Xiangyuan Zeng   +3 more
wiley   +1 more source