OMU News
Oct 10, 2025
- Expo 2025
- Science
Professor Fujii speaks about cosmic ray imaging inspiring art at the Osaka EXPO
On September 28, 2025, Associate Professor Toshihiro Fujii from the Graduate School of Science participated as a panelist in the Fusion of Science and Art symposium, held at the Hungarian Pavilion at the Osaka Expo.
The symposium aimed to explore new possibilities for integrating scientific research with artistic expression. A highlight of the event was Muography Art, an initiative that uses cosmic ray imaging with muon particles to inspire creative works and promote public understanding of science.
Fujii, a cosmic ray researcher, joined the symposium to share his experience collaborating on art projects inspired by his field of study. He spoke about the importance of interdisciplinary collaboration and the potential of cosmic ray science to engage wider audiences through art.
During the discussion, Fujii explained about the “Amaterasu Particle,” an ultra-high-energy cosmic ray that his team detected on May 27, 2021 using the international Telescope Array in Utah, USA. This particle, named after the Japanese sun goddess, represents one of the most energetic cosmic rays ever observed and raises fundamental questions about the origins of such extreme particles. As part of his presentation, Fujii spoke about how his research was transformed into art by the painter Hiroshi Nakajima. His talk captured the audience’s attention and sparked their imagination.
The presentation was based on research published in the international journal Science on November 24, 2023.
Related information
“Amaterasu” particle: a new cosmic mystery
https://www.omu.ac.jp/en/info/research-news/entry-39535.html
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