Theoretical physicist Fumitaka Sato, known for his contributions to unraveling the mystery of black holes, died at a hospital in Kyoto on Sunday. He was 87. https://www.japantimes.co.jp/news/2025/09/18/japan/black-hole-researcher-obituary/?utm_medium=Social&utm_source=mastodon #japan #space #obituary #physics #kyotouniversity #fumitakasato