Results 41 to 50 of about 1,091 (163)

Dimorphos Orbit Determination from Mutual Events Photometry

open access: yesThe Planetary Science Journal
The NASA Double Asteroid Redirection Test spacecraft successfully impacted the Didymos–Dimorphos binary asteroid system on 2022 September 26 UTC.
Peter Scheirich   +8 more
doaj   +1 more source

Accretion and Uneven Depletion of the Main Asteroid Belt

open access: yesThe Planetary Science Journal
The main asteroid belt (MAB) is known to be primarily composed of objects from two distinct taxonomic classes, generically defined here as S- and C-complex.
Rogerio Deienno   +5 more
doaj   +1 more source

The Cumulation of Debris Clouds around a Fast-rotating Asteroid

open access: yesThe Astrophysical Journal
The rotational mass loss has been realized to be a prevalent mechanism to produce low-speed debris near the asteroid, and the size composition of the asteroid’s surface regolith has been closely measured by in situ explorations.
Chenyang Huang   +5 more
doaj   +1 more source

Technical Challenges and Ethical, Legal and Social Issues (ELSI) for Asteroid Mining and Planetary Defense

open access: yesAerospace
Advances in the field of asteroid dynamics continue to yield new knowledge regarding the behavior and characteristics of asteroids, allowing unprecedented levels of accuracy for predicting trajectories and contributing to impact avoidance strategies ...
Evie Kendal, Tony Milligan, Martin Elvis
doaj   +1 more source

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

open access: yesThe 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   +6 more
doaj   +1 more source

Earth's Minimoons: Opportunities for Science and Technology

open access: yesFrontiers in Astronomy and Space Sciences, 2018
Twelve years ago the Catalina Sky Survey discovered Earth's first known natural geocentric object other than the Moon, a few-meter diameter asteroid designated 2006 RH120. Despite significant improvements in ground-based telescope and detector technology
Robert Jedicke   +8 more
doaj   +1 more source

Orbital Capture of Ejecta into Periodic Orbits around Binary Asteroid (65803) Didymos

open access: yesThe Planetary Science Journal
The successful impact of the Double Asteroid Redirection Test (DART) spacecraft on Dimorphos enabled the first-ever extensive observation of a postimpact ejecta tail from a binary asteroid system.
Xiaoyu Fu   +28 more
doaj   +1 more source

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

open access: yesEarth and Space Science
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. The
Haoyu Li   +3 more
doaj   +1 more source

Optimized Asteroid Rotation and Shape Modeling through an Integrated Shape-from-silhouette and Optical Flow Approach

open access: yesThe Astronomical Journal
Asteroids offer valuable insights into the formation and evolution of the solar system. Understanding their rotation and shape is essential for studying asteroid collision histories and geological processes, as well as for planning exploration missions ...
Yi Liu, Bo Wu, Hongliang Li
doaj   +1 more source

Orbital and Physical Characterization of Asteroid Dimorphos Following the DART Impact

open access: yesThe 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   +12 more
doaj   +1 more source

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