Results 81 to 90 of about 151,283 (199)
Radar and Optical Observations and Physical Modeling of Binary Near-Earth Asteroid 2018 EB
The Planetary Science JournalWe report radar, photometric, and visible-wavelength spectrophotometry observations of NEA 2018 EB obtained in 2018. The radar campaign started at Goldstone (8560 MHz, 3.5 cm) on April 7, and it was followed by more extensive observations from October 5 ...
Marina Brozović +19 more
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Weywot, an Unusually Low-albedo Satellite in the Trans-Neptunian Region
The Astrophysical Journal LettersWeywot is the largest satellite of the candidate dwarf planet Quaoar, which also hosts a remarkable ring system located beyond its Roche limit—a configuration that challenges conventional understanding of ring dynamics.
Estela Fernández-Valenzuela +42 more
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Synchronous Rotation in the (120347) Salacia–Actaea System
The Planetary Science JournalWe report on roughly 16 yr of photometric monitoring of the trans-Neptunian binary system (120347) Salacia–Actaea, which provides significant evidence that Salacia and Actaea are tidally locked to the mutual orbital period in a fully synchronous ...
Cameron Collyer +10 more
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A Change of the Rotation Period of Asteroid (65803) Didymos Caused by the DART Impact
The Planetary Science JournalOn 2022 September 26, the NASA Double Asteroid Redirection Test (DART) spacecraft impacted Dimorphos, the secondary component of the binary asteroid (65803) Didymos. This experiment tested the kinetic impactor technology for diverting dangerous asteroids.
Josef Ďurech +5 more
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Challenge in Arrokoth’s Single Merger to Achieve the Shape’s Principal Axis Configuration
The Planetary Science JournalThe cold-classical Kuiper Belt Object 486958 Arrokoth is a contact binary composed of two flattened lobes, Weeyo and Wenu, closely aligned along their principal axes, despite each lobe having a highly irregular shape.
Ketan Kamat +2 more
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The Planetary Science JournalWith the increasing number of binary asteroid systems being discovered, ejecta studies must expand from solely investigating single-body systems to modeling more complex multiple-body systems. For example, the Double Asteroid Redirection Test provides an
Jennifer N. Larson +2 more
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Near-Earth asteroid resource accessibility and future capture mission opportunities [PDF]
, 2012 In-Situ Resource Utilization (ISRU) has always been suggested for ambitious space endeavours; and asteroids and comets in particular are generally agreed to be ideal sources, both in terms of its accessibility and wealth.
Sanchez Cuartielles, Joan-Pau +2 more
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Numerical Determination of the Gravitational Cross Sections of an Accreting Binary
The Astrophysical JournalA significant amount of work has been devoted to the study of small binary solar system objects. The majority of these binaries, especially among the near-Earth or main belt asteroids, have small radius ratios, implying a large difference in size between
Zachary Murray
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Astronomy & AstrophysicsContext. Asteroid (469219) Kamo‘oalewa is the target of the Tianwen-2 sample-return mission by the China National Space Administration. Because of its orbit and its peculiar spectral properties, it was proposed that Kamo‘oalewa originated from the Moon ...
Fenucci Marco +3 more
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Assessment on the feasibility of future shepherding of asteroid resources [PDF]
, 2010 Most plausible futures for space exploration and exploitation require a large mass in Earth orbit. Delivering this mass requires overcoming the Earth's natural gravity well, which imposes a distinct obstacle to any future space venture.
Sanchez, J.P., McInnes, C.R.
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