最終更新日：2025/11/22
Astronomers calculated the column density along several lines of sight to estimate how much gas and dust lies between Earth and distant quasars.
正解を見る
Astronomers calculated the column density along several lines of sight to estimate how much gas and dust lies between Earth and distant quasars.
音声機能が動作しない場合はこちらをご確認ください
編集履歴（0）
