It would be better to understand more about universe. That's because we have to seek natural resources outside of the earth, if it becomes easier to get to other planets.
Judging from the fact that the earth has variety of atoms, there must be variety of atoms in other planets.
Diary of a rail fan in Kansai,Japan(Ver.2)
About world's rail news, general news, my train pictures, and travel diary)
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. クリエイティブ・コモンズ 表示 - 非営利 - 改変禁止 4.0 国際 ライセンスの下に提供されています。
| List of my travel diary | My train photoes | The other contents |
