"The Remarkable Scientist and Writer Ukichiro Nakaya and his "Black Moon" and "White Moon" Worlds" - Interactive discussion https://hgss.copernicus.org/preprints/hgss-2026-12/ 2026-08-26T07:54:07+02:00 Copernicus Publicationshttps://hgss.copernicus.org/preprints/hgss-2026-12/hgss-2026-12-AC1.pdfAC1: 'Comment on hgss-2026-12', Kevin Hamilton, 26 Aug 2026AC1: 'Comment on hgss-2026-12', Kevin Hamilton, 26 Aug 2026Kevin Hamilton2026-08-26T07:54:07+02:002026-08-26T07:54:07+02:00