- 06. DECEMBER * Gideon Klein * 340日目 あと25日 TOKYO_SUNRISE-06:36 SUNSET-16:28 MOON-22.7 DAYS _ 800,000 years ago, a huge meteorite hit Earth. Scientists may https://www.nationalgeographic.com/premium/article/have-scientists-found-800000-year-old-meteorite-impact-crater 姉の日, 音の日, シンフォニー記念日, ラジオアイソトープの…