遠い「宇宙の雪だるま」が、休眠状態の深宇宙天体がどのようにして「氷の爆弾」になるのかの謎を解き明かす(Distant ‘space snowman’ unlocks mystery of how some dormant deep space objects become ‘ice bombs’)
2024-03-27 ブラウン大学This image was taken by NASA's New Horizons spacecraft on Jan. 1, 2019 during a flyby of Kuiper Belt ob...