On January 31 (Sat.) and February 1 (Sun.), 2026, we held an astronomy training for students from Matsusho-Gakuen High School and Suwa-Seiryo High School in Nagano Prefecture and Nirasaki High School in Yamanashi Prefecture. They estimated the distance to galaxies from photographs of galaxies and used the recession speeds of these galaxies to determine the age of the universe.
