Results 51 to 60 of about 3,200,895 (194)

Effect of Irregular Particle Shape in Simulations of Tidal Disruption and Reaccumulation of Small Solar System Bodies

The Planetary Science Journal
Small solar system bodies subjected to planetary tides may be resurfaced, distorted, reshaped, split into binary or higher-multiple systems, or fragmented entirely. We investigate the effects of particle shape on numerical models of tidal deformation and
Julian C. Marohnic, Derek C. Richardson, Kevin J. Walsh, Joseph V. DeMartini   +3 more
doaj   +1 more source

The Benefits of High Resolution Multispectral TIR Data and Its Impending Loss by NASA After Four Decades

Perspectives of Earth and Space Scientists, Volume 7, Issue 1, December 2026.
Abstract NASA has led multispectral (≥3 wavelength bands) thermal infrared (TIR) sensor development from the earliest days of the agency. These data are critical in addressing a wide range of scientific questions and administration priories by measuring both temperature (for wildfire and volcanic eruption monitoring, agricultural plant stress, and ...
M. S. Ramsey, K. Cawse‐Nicholson, J. B. Fisher, S. J. Hook, G. C. Hulley, C. M. Lee, M. Silvestri, J. O. Thompson, I. M. Watson   +8 more
wiley   +1 more source

TUMBUKAN TAK-ELASTIK PARTIKEL SEBAGAI MODEL TERBENTUKNYA ASTEROID

Spektra: Jurnal Fisika dan Aplikasinya, 2017
Abstrak Suatu asteroid diduga merupakan kumpulan partikel yang bertumbukan tak-elastik sehingga membentuk suatu agregat. Ikatan yang terjadi antar partikel diasumsikan hanyalah disebabkan gaya gravitasi.
Sparisoma Viridi, Budi Dermawan
doaj   +1 more source

Stereophotoclinometry for OSIRIS-REx Spacecraft Navigation

The Planetary Science Journal, 2023
We summarize a decade of effort by the Origins, Spectral Interpretation, Resource Identification, and Security–Regolith Explorer (OSIRIS-REx) mission team to build up the unique capabilities, processes, and procedures required to accomplish the ...
Coralie D. Adam, Leilah K. McCarthy, Jason M. Leonard, Robert Gaskell, Peter G. Antreasian, Andrew J. Liounis, Kenneth Getzandanner, Michael C. Moreau, Eric E. Palmer, John Weirich, Olivier S. Barnouin, Jeroen L. Geeraert, Eric M. Sahr, Benjamin Ashman, Derek S. Nelson, John Y. Pelgrift, Erik J. Lessac-Chenen, Daniel Wibben, Bobby G. Williams, Michael G. Daly, Dante S. Lauretta   +20 more
doaj   +1 more source

Bacterial Diseases in Farmed Nile Tilapia (Oreochromis niloticus): A Review of Pathogenesis, Immune Responses and Recent Advances in Diagnostics and Management

Aquaculture, Fish and Fisheries, Volume 6, Issue 5, October 2026.
Pathogenesis of bacterial diseases in Nile tilapia and anti‐bacterial mechanisms. ABSTRACT Nile tilapia (Oreochromis niloticus) is among the most widely farmed fish globally that plays a major role in ensuring food security in many low‐ and middle‐income countries.
Catherine Agoe, John Walakira, Gerald Kwikiriza, Nasser Kasozi, Ivan Abaho, Manuel Curto, Paul Meulenbroek, Harald Meimberg, Peter Akoll   +8 more
wiley   +1 more source

BYORP and Dissipation in Binary Asteroids: Lessons from DART

The Planetary Science Journal
The near-Earth binary asteroid Didymos was the target of the planetary defense demonstration mission DART in 2022 September. The smaller binary component, Dimorphos, was impacted by the spacecraft in order to measure momentum transfer in kinetic impacts ...
Matija Ćuk, Harrison Agrusa, Rachel H. Cueva, Fabio Ferrari, Masatoshi Hirabayashi, Seth A. Jacobson, Jay McMahon, Patrick Michel, Paul Sánchez, Daniel J. Scheeres, Stephen Schwartz, Kevin J. Walsh, Yun Zhang   +12 more
doaj   +1 more source

System Modeling and Simulation of TianWen-2 Sampling on an Asteroid Regolith Surface

Space: Science & Technology
As China’s first asteroid exploration mission, the TianWen-2 spacecraft mainly focuses on surface sampling on the near-Earth asteroid 2016 HO3. Different from the usual sampling strategy of releasing a small lander or ejecting a projectile, the whole ...
He Zhang, Dongming Ge, Runran Deng, Cuicui Liu, Fan Guo, Yingqiao Xu, Fuming Zeng, Jinchang Hu, Yuanjie Zou, Weiwei Gong, Wei E   +10 more
doaj   +1 more source

Dynamics of asteroid systems post-rotational fission

Astronomy & Astrophysics, 2022
Asteroid binaries found among the near-Earth objects are believed to have formed from rotational fission. In this paper, we study the dynamical evolution of asteroid systems the moment after fission. The model considers two bodies the moment after a contact binary separates due to rotational fission.
Alex Ho, Margrethe Wold, Mohammad Poursina, John T. Conway   +3 more
openaire   +3 more sources

From Flybys to Sample Return: A Review of Space Probes and Robotic Sampling Technologies for Small Bodies

Journal of Field Robotics, Volume 43, Issue 7, Page 4475-4514, October 2026.
ABSTRACT As a crucial puzzle piece of deep space exploration, exploring small bodies can provide significant scientific insights and valuable mineral resources. Unlike missions to the Moon and Mars, small‐body missions pose distinct technical challenges, including communication delays, weak gravity, and uncertain environments. This paper reviews a full
Xin Zhang, Hao Zhou, Dalin Zhou, Zhaojie Ju   +3 more
wiley   +1 more source

Automatic Crater Classification Using a Deep‐Learning‐Based Pipeline

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 5, October 2026.
Abstract Identifying and classifying impact craters on Mars is crucial for understanding the planet's geological history and surface evolution. Traditional crater classification relies on manual annotation methods, which are often limited by human biases and the difficulty of interpreting geomorphological features.
L. Martinez, F. Andrieu, F. Schmidt, M. S. Bentley   +3 more
wiley   +1 more source