JpGU-AGU Joint Meeting 2026

Session information

[E] Oral

P (Space and Planetary Sciences ) » P-PS Planetary Sciences

[P-PS03] Small Solar System Bodies: New perspectives on the origin and evolution of the Solar System

Wed. May 27, 2026 1:45 PM - 3:15 PM 302 (International Conference Hall, Makuhari Messe)

Chairperson:Fukai Ryota(Japan Aerospace Exploration Agency), Arakawa Sota(Japan Agency for Marine-Earth Science and Technology)

Asteroids, comets, satellites, and other small solar system bodies
provide crucial clues for understanding the origin and evolution of
the solar system and for supplying the building blocks of life.
Numerous discoveries have been made through ground-based and space
telescope observations and direct exploration by spacecraft.
Meanwhile, in addition to analyzing meteorites and cosmic dust, the
analysis of returned samples via sample return missions has enabled
the acquisition of empirical and highly precise information.
Integrating observational research, sample analysis studies, and
theoretical/laboratory experiments is expected to foster new
perspectives in planetary science. This session will focus on the
latest theoretical and experimental research on solar system small
bodies (meteorite & sample return analyses via high resolution
analytical techniques), the latest results from ground-based
observations, and new insights from current missions such as
OSIRIS-REx and DART. It will also cover high-sensitivity observations
expected in the large telescopes like LSST and JWST, as well as the
Hayabusa2#, MMX, Destiny+, Hera, Comet Interceptor, Lucy, and Psyche,
and the scientific progress achievable through their coordination.
Furthermore, we encourage active discussion on the next-generation
asteroid exploration mission concepts and payload studies currently
under Working Group consideration, as well as on planetary defense.

1:45 PM - 2:00 PM

*Tatsuaki Okada1,2, Satoshi Tanaka1,2, Naoya Sakatani1, Yuri Shimaki1, Takehiko Arai3, Hiroki Senshu4, Hirohide Demura5, Tomohiko Sekiguchi6, Toru Kouyama7, Masanori Kanamaru6, Takuya Ishizaki1, Soichiro Furukawa1,2, Ramon Vilardell-Belles5, Ozgur Karatekin8, Joris Blommaert9, Tim Titus10 (1. Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 2. University of Tokyo, 3. Maebashi Institute of Technology, 4. Chiba Institute of Technology, 5. University of Aizu, 6. Hokkaido University of Education, 7. National Institute of Advanced Industrial Science and Technology (AIST), 8. Royal Observatory of Belgium, 9. Flemish Institute for Technological Research (VITO), 10. United States Geological Survey)

2:30 PM - 2:45 PM

*Saverio Cambioni1, Benjamin P. Weiss1, Namya Baijal2, Robert Melikyan2, Erik Asphaug2, John B. Biersteker1, Richard P. Binzel1, William F. Bottke3, Samuel W. Courville4, Linda T. Elkins-Tanton5, David J. Lawrence6, José M. G. Merayo7, Carol A. Raymond8, Mark A. Wieczorek9, Maria T. Zuber1 (1. Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA, USA, 2. Lunar and Planetary Laboratory, The University of Arizona, Tucson, AZ, USA, 3. Solar System Science & Exploration Division, Southwest Research Institute, Boulder, CO, USA, 4. School of Earth and Space Exploration, Arizona State University, Tempe, AZ, USA, 5. University of California, Berkeley Space Sciences Laboratory, Berkeley, CA, USA, 6. The Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA, 7. DTU Space, Technical University of Denmark (DTU), Kongens Lyngby, Denmark, 8. Jet Propulsion Laboratory/Caltech, LA Cañada Flintridge, CA, USA, 9. Institut de physique du globe de Paris, Universitè Paris Citè, CNRS, Paris, France)

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