On October 7, the Discovery Park Yaizu (Shizuoka, Japan) held an astronomical science class for adults titled “Evolution of Japanese Radio Telescopes -from Palabola Technique developed in Yaizu to the ALMA Telescope-” by Masato Ishiguro, a professor emeritus at the National Astronomical Observatory of Japan (NAOJ).

Yaizu is the home town of Sojiro Norizuki (1912-1995) who made the first Japanese equatorial parabola antenna. The Discovery Park Yaize owns a solar radio telescope fabricated by him. His devotion to astronomy contributed to the rapid progress of Japanese astronomy during these 80 years. The radio telescope developed by the NAOJ Nobeyama Radio Observatory (NRO) has evolved into the ALMA telescope constructed and operated in a global partnership, and ALMA has successfully captured detailed images of the optically-invisible universe. The audience listened very attentively to the talk of the speaker who has led the Japanese astronomy and the international ALMA project.