申し訳ありません、このコンテンツはただ今　アメリカ英語と 中文　のみです。 For the sake of viewer convenience, the content is shown below in one of the available alternative languages. You may click one of the links to switch the site language to another available language.

From antiquity to space flight is not a close path. It is littered with wars and conflicts. But humanity will definitely cope with this!