Selected papers from 2025–2026 introduce recent work on planetary surfaces and materials, alongside measurement techniques relevant to space-resource exploration. Each entry links to the publication.
Browse the publication list on researchmap ↗
Recent publications
2026.09
Improving compact antennas through their geometry
Wide, tilted slots are introduced into a compact Vivaldi antenna on a high-permittivity substrate to improve low-frequency gain. The reported performance is evaluated through full-wave electromagnetic simulations.
Yuta Sugihara, Hideaki Miyamoto, Makito Kobayashi
Microwave 2(3), 14 (2026)
2026.07
Tracing the evolution of Deimos through craters and boulders
EXI images from the Emirates Mars Mission are used to map craters and boulders on Deimos. Their distribution offers evidence relevant to resurfacing, possible reorientation and the redistribution of material.
Y. Shimizu et al. (including H. Miyamoto)
Geophysical Research Letters 53, e2025GL117346 (2026)
2026.07
Reading Ryugu’s surface history through global geological mapping
Hayabusa2 images and topographic information are brought together in a global geological map. The study examines rotational deformation and surface movement, providing context for the returned samples.
Surface Geology and Evolution of Asteroid Ryugu: Insights From Hayabusa2 Global Mapping ↗
Lisa M. Vincent et al. (including Hideaki Miyamoto)
Journal of Geophysical Research: Planets (2026)
2026.05
Investigating subsurface water ice with neutrons
This study addresses the characterization of subsurface water ice through active neutron counting with different source-to-detector distances.
Teppei Takemoto, Hideaki Miyamoto, Yuta Shimizu
Advances in Space Research (2026)
2025.11
Measuring lunar simulants in the terahertz band
Laboratory measurements of polarized terahertz emission show that apparent bulk permittivity can be estimated even for simulants with lunar-like surface roughness, supporting the interpretation of remote sensing.
First Passive Permittivity Measurement of Lunar Regolith Simulant at Terahertz Band ↗
Makito Kobayashi, Takayoshi Yamada, Hideaki Miyamoto, Tomohiro Takemura, Airi Toida, Yasuko Kasai
The Planetary Science Journal 6, 266 (2025)
2025.11
How angular grains change vibration-driven flow
Laboratory experiments and simulations reveal different flow behaviour for angular and rounded particles under vibration. The results highlight the importance of particle shape when interpreting the movement of planetary regolith.
Particle angularity controls granular flow under vibration ↗
Yuna Isobe, Hideaki Miyamoto, Yuta Shimizu
Physical Review E 112, 055411 (2025)
Foundational selected papers
Regolith migration and sorting on asteroid Itokawa
Science 316, 1011 (2007)
The global distribution of pure anorthosite on the Moon
Nature 461, 236 (2009)
The geomorphology, color, and thermal properties of Ryugu: Implications for parent-body processes
Science 364, eaaw0422 (2019)
Touchdown of the Hayabusa spacecraft at the Muses Sea on Itokawa
Science 312, 1350 (2006)
Cluster analysis on the bulk elemental compositions of Antarctic stony meteorites
Meteoritics & Planetary Science 51, 906 (2016)
Simplified Simulated Materials of Asteroid Ryugu for Spacecraft Operations and Scientific Evaluations
Natural Resources Research (2020)
Public engagement
- Planetary-science outreach through collaboration across sectors (2014; Japanese)
- Planetary exploration data and space-resource engineering (2018; Japanese)
Selected and checked on 9 October 2026 using researchmap and accessible publisher records. See researchmap for the broader publication list.