12th Symposium of
Solar System Materials
November 11–14, 2025
JAXA Sagamihara Campus, JAPAN
Overview
Hayabusa 2025 will be held on 11–14 November 2025 on-site at the JAXA Sagamihara Campus and online. Let’s enjoy discussing the exciting results and ongoing research in Solar System science. We look forward to seeing you at the symposium!
- Date
- November 11–14, 2025
- Format
- Hybrid (in-person & online)
- Venue
- Conference Hall (Room 1236), 2nd Floor, Research/Administration Building (Bldg. A), ISAS, JAXA Sagamihara Campus
- Events
- Banquet, Lab Tour
The Symposium on Polar Science will be held separately on December 2–5, 2025 (NIPR, Tachikawa).
More details here.



Scope
The Hayabusa Symposium 2025 brings together researchers studying extraterrestrial samples, focusing on Hayabusa, Hayabusa2, OSIRIS-REx, and upcoming missions like MMX. With Ryugu and Bennu samples now distributed to the global scientific community, this symposium will explore cutting-edge research and foster collaboration.
In addition, related studies with the results from remote-sensing, surface measurements, ground observations, and numerical studies should be comparatively discussed. The other regular topics on any extraterrestrial materials and primitive bodies in the Solar System by theoretical, observational, and experimental studies, new methodology of analysis, and future space missions are highly welcomed!




Invited Speakers (in alphabetical order)
To be announced: September, 2025
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TBD
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Topics
We welcome contributions in the following scientific areas:
- New results of returned Sample Analysis: Itokawa, Ryugu, Bennu, ...
- Comparative studies of meteorites, IDPs: asteroid-meteorite connections
- Solar System Evolution: Theoretical, experimental, observational studies of primitive bodies
- Methodology & analytical technique: New methods for sample analysis and observations
- Space Missions: Hayabusa, Hayabusa2, OSIRIS-REx, MMX, and others
- Curation Techniques: Contamination control, sample handling, storage methods
- Processes in samples: Aqueous alteration, space weathering, experimental simulations
- Community Infrastructure: Data sharing, publication practices, outreach activities

Register
Important Dates
- Registration Opens
- August 14, 2025
- Abstract Submission Deadline
- September 19, 2025
- Registration Deadline
- October 31, 2025
Registration Guidelines
- Participation Fee: Free of charge
- Registration is required for all participants, including online attendees.
- Presenters must submit an abstract, and this submission also serves as their registration. No separate registration form is required.
- Abstract format: 2-page PDF in English (maximum file size: 5 MB)
Presenter Guidelines
Oral Presentations
- Presentation time: 15 minutes total, including Q&A (It is subject to change once the program is fixed)
- Available to both on-site and online participants
- Detailed instructions on presentation logistics will be provided closer to the symposium date
Poster Presentations
- On-site only
- Posters will be displayed on A0-size panels
- Presenters are expected to be available during the designated poster session to discuss their work
Schedule
Program & Abstracts
To be announced: Mid. October, 2025
Past program abstracts can be accessed here.
Gallery
Photos from past Hayabusa Symposia and related activities Photo Gallery.

Access
3-1-1 Yoshinodai, Chuo-ku, Sagamihara, Kanagawa 252-5210, Japan
Map and Directions
Recommended nearby accommodations (external links)
Organizers
Scientific Organizing Committee (SOC)
Tomohiro Usui (ISAS/JAXA), Tatsuaki Okada (ISAS/JAXA)
Local Organizing Committee (LOC)
Astromaterials Science Research Group (ISAS/JAXA)
Contact
If you have any questions, please contact:
Email: hy-symposium@jaxa.jp