Results 101 to 110 of about 131,482 (278)

Simulation of the Dual-Frequency Radar Image of Asteroid 2016 HO3 and Implication for Tianwen-2 Mission

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
In China's Tianwen-2 mission, a dual-frequency radar will be carried out to detect the asteroid 2016 HO3. The dual-frequency radar can acquire the information of the asteroid's surface and internal structure. There are few studies about the
Niutao Liu, Ya-Qiu Jin, Feng Xu
doaj   +1 more source

Harvesting Near Earth Asteroid Resources Using Solar Sail Technology [PDF]

, 2017
Near Earth asteroids represent a wealth of material resources to support future space ventures. These resources include water from C-type asteroids for crew logistic support; liquid propellants electrolytically cracked from water to fuel crewed vehicles ...
McInnes, Colin
core  

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

Investigation and reclassification of four mesosiderites—Implications for their formation

Meteoritics &Planetary Science, EarlyView.
Abstract Mesosiderites are rare, differentiated meteorites, so‐called stony‐iron meteorites—they are impact breccias composed of an unusual mix of crustal basalt and pyroxenite, core‐derived metal, but no mantle materials. This odd mixture makes their origin enigmatic and has inspired many different formation theories over the last several decades ...
Gabriel Zachén, Carl Alwmark, Sanna Alwmark, Ludovic Ferrière, Roger H. Hewins   +4 more
wiley   +1 more source

Оптимальное управление движением космического аппарата в поле притяжения астероида Эрос 433

Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2019
Рассматривается алгоритм оптимизации управляемого движения космического аппарата с двигателями малой тяги в поле притяжения астероида Эрос 433. Гравитационное поле астероида имеет сложную конфигурацию.
А. Ю. Шорников
doaj   +1 more source

ASIME 2018 White Paper. In-Space Utilisation of Asteroids: Asteroid Composition -- Answers to Questions from the Asteroid Miners

, 2019
In keeping with the Luxembourg government's initiative to support the future use of space resources, ASIME 2018 was held in Belval, Luxembourg on April 16-17, 2018.
Abbud-Madrid, Angel, Abell, Paul, Barucci, Antonella, Beck, Pierre, Bonal, Lydie, Bonin, Grant, Borgersen, Øystein Risan, Britt, Daniel, Campins, Humberto, Cannon, Kevin, Carnelli, Ian, Carry, Benoît, Crawford, Ian, de Leon, Julia, Donaldson-Hanna, Kerri, Drube, Line, Elvis, Martin, Fitzsimmons, Alan, Galache, JL, Graps, Amara L., Green, Simon F., Grundmann, Jan Thimo, Herique, Alan, Hestroffer, Daniel, Hsieh, Henry, Kereszturi, Akos, Kueppers, Michael, Lewicki, Chris, Lin, Yangting, Mainzer, Amy, Michel, Patrick, Moon, Hong-Kyu, Nakamura, Tomoki, Penttila, Antti, Pursiainen, Sampsa, Raymond, Carol, Reddy, Vishnu, Rivkin, Andy, Sercel, Joel, Stickle, Angela, Takala, Mika, Tanga, Paolo, Wirtz, Tom, Wu, YunZhao   +43 more
core  

Reconstructing the size distribution of the primordial Main Belt

, 2017
In this work we aim to constrain the slope of the size distribution of main-belt asteroids, at their primordial state. To do so we turn out attention to the part of the main asteroid belt between 2.82 and 2.96~AU, the so-called "pristine zone", which has
Delbo, Marco, Morbidelli, Alessandro, Tsiganis, Kleomenis, Tsirvoulis, Georgios   +3 more
core   +2 more sources

Asteroid Family Associations of Active Asteroids [PDF]

, 2018
We report on the results of a systematic search for associated asteroid families for all active asteroids known to date. We find that 10 out of 12 main-belt comets (MBCs) and five out of seven disrupted asteroids are linked with known or candidate ...
H. Hsieh, B. Novaković, Yoonyoung Kim, R. Brasser   +3 more
semanticscholar   +1 more source

Petrography of phosphates in CI and CY carbonaceous chondrites

Meteoritics &Planetary Science, EarlyView.
Abstract Phosphate minerals are significant carriers of volatiles (e.g., OH) and halogens in chondritic material; however, their origin in most groups of carbonaceous chondrites remains poorly characterized. We have determined the abundance, morphology, texture, and composition of phosphate grains in aqueously altered CI chondrites and in hydrated and ...
C. S. Harrison, A. J. King, R. H. Jones, L. Piani   +3 more
wiley   +1 more source

Collisional Formation and Modeling of Asteroid Families

, 2015
In the last decade, thanks to the development of sophisticated numerical codes, major breakthroughs have been achieved in our understanding of the formation of asteroid families by catastrophic disruption of large parent bodies.
Asphaug, Erik, Durda, Daniel D., Jutzi, Martin, Michel, Patrick, Richardson, Derek C.   +4 more
core   +1 more source