Results 41 to 50 of about 6,852,218 (267)

Thermophysical Model of (269) Justitia—Main Belt Asteroid Possibly Implanted from Trans-Neptunian Region

The Planetary Science Journal
Asteroid Justitia is a special main-belt object, being an extremely red body with a steeper spectral slope than any other D-type asteroid. Conversely, its spectral and polarimetric properties resemble organics-rich Centaurs and trans-Neptunian objects ...
Anna Marciniak, Antoine Choukroun, Julia Perła, Waldemar Ogłoza, Robert Szakáts, Pierre Antonini, Raoul Behrend, Géza Csörnyei, Marek Dróżdż, Marcel Fauvaud, Stéphane Fauvaud, Adrian Jones, Dong-Heun Kim, Myung-Jin Kim, Viktor Kudak, Iga Mieczkowska, Erika Pakštienė, Vasyl Perig, Eda Sonbas   +18 more
doaj   +1 more source

Photocatalytic Water Splitting on the Lunar Surface: Prospects for In Situ Resource Utilization

Advanced Materials Interfaces, EarlyView.
Water has been found in craters on the moon nearby locations which are illuminated >80% of the time. Photocatalysis uses energy from sunlight to drive chemical reactions such as water splitting to produce oxygen and hydrogen. It is a scalable technology that requires lighter equipment and utilizes resources available on the moon. ABSTRACT The discovery
Ranjani Kalyan, Thomas D. Small, Gregory F. Metha, Mahmoud Adel Hamza, Thomas J. O'Dea, Yideng Shen, Cameron J. Shearer   +6 more
wiley   +1 more source

Global Patterns of Recent Mass Movement on Asteroid (101955) Bennu

Journal of Geophysical Research: Planets, 2020
The exploration of near‐Earth asteroids has revealed dynamic surfaces characterized by mobile, unconsolidated material that responds to local geophysical gradients, resulting in distinct morphologies and boulder distributions.
E. Jawin, K. Walsh, O. Barnouin, T. Mccoy, R. Ballouz, D. DellaGiustina, H. Connolly, J. Marshall, C. Beddingfield, M. Nolan, J. Molaro, C. Bennett, D. Scheeres, M. Daly, M. A. Al Asad, R. Daly, E. Bierhaus, H. Susorney, H. Kaplan, H. Enos, D. Lauretta   +20 more
semanticscholar   +1 more source

DART Impact Ejecta Plume Evolution: Implications for Dimorphos

The Planetary Science Journal
The NASA Double Asteroid Redirection Test (DART) spacecraft impacted the moon Dimorphos of the [65803] Didymos binary system and changed the binary orbit period, demonstrating asteroid deflection by a kinetic impact and indicating that more momentum was ...
Andrew F. Cheng, S. D. Raducan, M. Jutzi, T. L. Farnham, E. Dotto, V. Della Corte, E. Mazzotta Epifani, A. Rossi, I. Gai, J. Deshapriya, P. Hasselmann, I. Bertini, A. Zinzi, S. Ivanovski, J. Brucato, Giovanni Poggiali, A. Lucchetti, M. Pajola, G. Zanotti, M. Amoroso, A. Capannolo, G. Cremonese, M. Dall’Ora, S. Ieva, G. Impresario, M. Lavagna, D. Modenini, P. Palumbo, D. Perna, S. Pirrotta, P. Tortora, M. Zannoni   +31 more
doaj   +1 more source

Taxonomic Classification of Asteroids Using the KMTNet Multiband Photometry Data Set

The Planetary Science Journal, 2023
We report the multiband photometry of asteroids observed over 14 nights from 2015 December to 2017 December using the Korea Microlensing Telescope Network telescopes with the taxonomic classification of those objects. The data set contains the photometry
Sangho Choi, Hong-Kyu Moon, Dong-Goo Roh, Min-Su Shin, Myung-Jin Kim, Young-Jong Sohn   +5 more
doaj   +1 more source

Asteroid lightcurve phase shift from rough‐surface shadowing [PDF]

Meteoritics & Planetary Science, 2013
AbstractWe have simulated asteroid lightcurves for simple shape models using a realistic surface scattering law. The scattering law includes a shadowing function computed with numerical ray‐tracing. We computed lightcurves in a variety of illumination geometries for both the traditional Lommel–Seeliger law and our seminumerical law.
Muinonen Karri, Wilkman Olli
openaire   +1 more source

Predicting Performance of Hall Effect Ion Source Using Machine Learning

Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.
This study introduces HallNN, a machine learning tool for predicting Hall effect ion source performance using a neural network ensemble trained on data generated from numerical simulations. HallNN provides faster and more accurate predictions than numerical methods and traditional scaling laws, making it valuable for designing and optimizing Hall ...
Jaehong Park, Guentae Doh, Dongho Lee, Youngho Kim, Changmin Shin, Su‐Jin Shin, Young‐Chul Ghim, Sanghoo Park, Wonho Choe   +8 more
wiley   +1 more source

Properties of rubble-pile asteroid (101955) Bennu from OSIRIS-REx imaging and thermal analysis

Nature Astronomy, 2019
Establishing the abundance and physical properties of regolith and boulders on asteroids is crucial for understanding the formation and degradation mechanisms at work on their surfaces.
D. DellaGiustina, J. Emery, D. Golish, B. Rozitis, C. Bennett, K. Burke, R. Ballouz, K. Becker, P. Christensen, C. D. Drouet d’Aubigny, V. Hamilton, D. Reuter, B. Rizk, A. Simon, E. Asphaug, J. Bandfield, O. Barnouin, M. Barucci, E. Bierhaus, R. Binzel, W. Bottke, N. Bowles, H. Campins, B. Clark, B. Clark, H. Connolly, M. Daly, J. Leon, M. Delbo’, J. Deshapriya, C. Elder, S. Fornasier, C. Hergenrother, E. Howell, E. Jawin, H. Kaplan, T. Kareta, L. Corre, J.‐Y. Li, J. Licandro, L. Lim, P. Michel, J. Molaro, M. Nolan, M. Pajola, M. Popescu, Jolai R. Garcia, A. Ryan, S. Schwartz, N. Shultz, M. Siegler, P. H. Smith, E. Tatsumi, C. Thomas, K. Walsh, C. Wolner, X. Zou, D. Lauretta, the OSIRIS-REx Team   +58 more
semanticscholar   +1 more source

The Mineralogical Connection between M- and K-type Asteroids as Indicated by Polarimetry

The Planetary Science Journal
Polarimetry has the capacity to provide a unique probe of the surface properties of asteroids. Trends in polarization behavior as a function of wavelength trace asteroid regolith mineral properties that are difficult to probe without measurements in situ
Joseph R. Masiero, Yuna G. Kwon, Elena Selmi, Manaswi Kondapally   +3 more
doaj   +1 more source

Crater Observing Bioinspired Rolling Articulator (COBRA)

Advanced Intelligent Systems, EarlyView.
Crater Observing Bio‐inspired Rolling Articulator (COBRA) is a modular, snake‐inspired robot that addresses the mobility challenges of extraterrestrial exploration sites such as Shackleton Crater. Incorporating snake‐like gaits and tumbling locomotion, COBRA navigates both uneven surfaces and steep crater walls.
Adarsh Salagame, Henry Noyes, Eric Sihite, Arash Kalantari, Alireza Ramezani   +4 more
wiley   +1 more source