Results 31 to 40 of about 938 (163)

AIAA SciTech Forum 2022

open access: yes, 2022
This paper describes the preliminary analysis of Hayabusa2 capsule reentry data obtained from two spectrometers ('Hyper-Mono-1' and 'Hyper-IR-1') onboard the Australian Airborne Reentry Observation Mission.
Zander, Fabian   +4 more
core   +1 more source

Apatite in Bennu samples indicates multiple stages of aqueous alteration

open access: yesMeteoritics &Planetary Science, Volume 61, Issue 3, Page 504-521, March 2026.
Abstract Calcium phosphates are ubiquitous in planetary materials, including samples returned from asteroid Bennu by the OSIRIS‐REx mission. We characterized apatite [Ca5(PO4)3(F,Cl,OH)] grains in Bennu samples by scanning electron microscopy, electron microprobe analysis, and transmission electron microscopy to investigate their compositions, mineral ...
Laura B. Seifert   +10 more
wiley   +1 more source

Characteristics of Natural Remanence Records in Fine‐Grained Particles Returned From Asteroid Ryugu

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 2, February 2026.
Abstract Particles collected from the asteroid Ryugu by the Hayabusa2 spacecraft offer a unique opportunity to investigate the magnetic record of the primitive solar system, as any terrestrial magnetic contamination is minimal and can be accounted for.
Masahiko Sato   +27 more
wiley   +1 more source

Spectral Characteristics of Asteroid (162173) Ryugu with Hayabusa2 NIRS3

open access: yes, 2019
International audienceWe report recent results of the surface composition of asteroid 162173 Ryugu from Hayabusa2 near-infrared spectroscopy
Matsumoto, K.   +63 more
core   +1 more source

The deep-space multi-object orbit determination system and its application to Hayabusa2’s asteroid proximity operations [PDF]

open access: yes, 2020
The deep-space multi-object orbit determination system (DMOODS) and its application in the asteroid proximity operation of the Hayabusa2 mission are described.
Saiki, Takanao   +16 more
core   +1 more source

JAXA curation for Bennu samples returned by the NASA's OSIRIS‐REx mission

open access: yesMeteoritics &Planetary Science, Volume 61, Issue 1, Page 182-207, January 2026.
Abstract NASA's OSIRIS‐REx mission successfully collected and returned ~121.6 g of bulk samples from the B‐type, near‐Earth asteroid (101955) Bennu to Earth in September 2023. Upon returning to Earth, the samples were transported to the NASA Johnson Space Center where most of the samples have been stored and processed.
Rui Tahara   +34 more
wiley   +1 more source

MASCOT - a Mobile Lander on-board Hayabusa2 Spacecraft - Operations on Ryugu [PDF]

open access: yes, 2021
MASCOT (‘Mobile Asteroid Surface Scout’) is a 10 kg mobile surface science package part of JAXA’s Hayabusa2 sample return mission. The mission was launched in December 2014 from Tanegashima Space Center, Japan. The Hayabusa2 spacecraft reached the target
Saiki, Takanao   +40 more
core  

Nondestructive analysis of Bennu samples toward comparative studies with Ryugu samples

open access: yesMeteoritics &Planetary Science, Volume 61, Issue 1, Page 3-16, January 2026.
Abstract Analyzing primitive extraterrestrial samples from asteroids is key to understanding the evolution of the early solar system. The OSIRIS‐REx mission returned samples from the B‐type asteroid Bennu, providing a valuable opportunity to compare them with the Ryugu samples collected by the Hayabusa2 mission.
Ryota Fukai   +32 more
wiley   +1 more source

Occurrence and characterization of nanosulfide‐rich regions on asteroid Ryugu: Insights from mackinawite and pyrrhotite

open access: yesMeteoritics &Planetary Science, Volume 61, Issue 1, Page 168-181, January 2026.
Abstract Samples returned from asteroid Ryugu by the Hayabusa2 mission are dominated by fine‐grained matrix material made of phyllosilicates and nanosulfides. Here, we report the mineralogical, textural, and chemical characteristics of nanosulfide‐rich regions identified in Ryugu particles.
Roberto Conconi   +9 more
wiley   +1 more source

Sulfur‐bearing serpentine in carbonaceous chondrites

open access: yesMeteoritics &Planetary Science, Volume 60, Issue 12, Page 2864-2890, December 2025.
Abstract A correlative multi‐technique approach, including electron microscopy and X‐ray synchrotron work, has been used to obtain both structural and compositional information of a sulfur‐bearing serpentine identified in several carbonaceous chondrites (Winchcombe CM2, Aguas Zarcas CM2, Ivuna CI, and Orgueil CI), and in Ryugu samples returned by the ...
N. Topping   +14 more
wiley   +1 more source

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