Results 1 to 10 of about 124,802 (273)

Asteroid Family Associations of Active Asteroids [PDF]

open access: yesThe Astronomical Journal, 2018
Abstract 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 families, rates that have ∼0.1% and ∼6% probabilities, respectively, of occurring ...
Yoonyoung Kim   +4 more
openaire   +5 more sources

Asteroid Ryugu before the Hayabusa2 encounter [PDF]

open access: yesProgress in Earth and Planetary Science, 2018
Asteroid (162173) Ryugu is the target object of Hayabusa2, an asteroid exploration and sample return mission led by Japan Aerospace Exploration Agency (JAXA).
Koji Wada   +34 more
doaj   +2 more sources

Successful kinetic impact into an asteroid for planetary defence [PDF]

open access: yesNature, 2023
The impact of the DART spacecraft on the asteroid Dimorphos is reported and reconstructed, demonstrating that kinetic impactor technology is a viable technique to potentially defend Earth from asteroids. Although no known asteroid poses a threat to Earth
R. T. Daly   +100 more
semanticscholar   +1 more source

Momentum transfer from the DART mission kinetic impact on asteroid Dimorphos [PDF]

open access: yesNature, 2023
The NASA Double Asteroid Redirection Test (DART) mission performed a kinetic impact on asteroid Dimorphos, the satellite of the binary asteroid (65803) Didymos, at 23:14 UTC on 26 September 2022 as a planetary defence test^ 1 .
A. Cheng   +68 more
semanticscholar   +1 more source

Ejecta from the DART-produced active asteroid Dimorphos [PDF]

open access: yesNature, 2023
Some active asteroids have been proposed to be formed as a result of impact events^ 1 . Because active asteroids are generally discovered by chance only after their tails have fully formed, the process of how impact ejecta evolve into a tail has, to our ...
Jian-Yang Li   +63 more
semanticscholar   +1 more source

Soluble organic molecules in samples of the carbonaceous asteroid (162173) Ryugu

open access: yesScience, 2023
The Hayabusa2 spacecraft collected samples from the surface of the carbonaceous near-Earth asteroid (162173) Ryugu and brought them to Earth. The samples were expected to contain organic molecules, which record processes that occurred in the early Solar ...
H. Naraoka   +114 more
semanticscholar   +1 more source

The Formation of a Rubble Pile Asteroid: Insights from the Asteroid Ryugu

open access: yesUniverse, 2023
The Hayabusa2 mission returned primitive samples from the C-type asteroid Ryugu to Earth. The C-type asteroids hold clues to the origin of Earth’s water and the building blocks of life.
Tsutomu Ota   +8 more
doaj   +1 more source

Samples returned from the asteroid Ryugu are similar to Ivuna-type carbonaceous meteorites

open access: yesScience, 2022
Carbonaceous meteorites are thought to be fragments of C-type (carbonaceous) asteroids. Samples of the C-type asteroid (162173) Ryugu were retrieved by the Hayabusa2 spacecraft.
T. Yokoyama   +148 more
semanticscholar   +1 more source

On the origin and evolution of the asteroid Ryugu: A comprehensive geochemical perspective

open access: yesProceedings of the Japan Academy. Series B, Physical and biological sciences, 2022
Presented here are the observations and interpretations from a comprehensive analysis of 16 representative particles returned from the C-type asteroid Ryugu by the Hayabusa2 mission.
Eizo Nakamura   +89 more
semanticscholar   +1 more source

The first complete mitochondrial genome of the Northern Pacific deep-sea goniasterid sea star Ceramaster japonicus (Sladen, 1889) determined using NGS-based shotgun sequencing

open access: yesMitochondrial DNA. Part B. Resources, 2021
The full mitogenome of an ethanol-preserved museum specimen of Ceramaster japonicus was determined using the NGS Illumina MiSeq platform. The specimen was collected from Tosa Bay, Japan, facing the Pacific Ocean (33.0781 N 134.0601 E), at 700 m depth in ...
Masaki Yamamoto   +6 more
doaj   +1 more source

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