Osaka University

On February 8, 2026, we held the cosmic ray exploration event “Tan-Q — The Mystery of the Universe! The Wonder of Cosmic Rays” at Osaka University’s Toyonaka Campus in Osaka. The event let five high school students experience hands-on science using OSECHI. Associate Professor Mizuki Yoshioka (Kyushu University) led the seminar, speaking about what cosmic rays are. From the OSECHI project, Associate Professor Yoshioka was joined by Associate Professor Kazuki Ueno (Osaka University), Specially Appointed Assistant Professor Shota Takahashi (Nagoya University), Shoji (KEK), Professor Takeyuki Nakamori (Yamagata University), Professor Satoru Mihara (KEK / SOKENDAI), and graduate students Yamada and Aramaki (Osaka University).

On November 6, 2022, Kasoku Kitchen hosted “Measure Cosmic Rays with a Cosmic Ray Detector!” at the Osaka Science Museum in Osaka. Open to participants from 5th grade through high school, it was a hands-on program where participants built their own Cosmic Watch and used it to observe cosmic rays. From the OSECHI project, Associate Professor Kazuki Ueno (Osaka University) and Masaki Miyataki took part as staff, helping participants with their builds and introducing the OSECHI project.