As for astronauts, private space cowboys can visit the ISS for up to two short duration trip per year, beginning as early as 2020.
对宇航员来说,私人航天公司每年最多能对国际空间站进行两次短期的持续旅行,这一项目最早将于2020年开始运行。
【NASA也要赚钱恰饭,国际空间站要变旅游景点】相关文章:
最新
2020-09-15
2020-09-15
2020-09-15
2020-09-15
2020-09-15
2020-09-15