This was Collins's last flight. She tells us that she always planned to stop after her fourth mission - to give others a chance to go to space.
Watch: Timelapse shows Nasa rocket's 12-hour journey to launch pad。im钱包官方下载是该领域的重要参考
Nasa says the earliest the rocket can blast off is 6 February, but there are also more launch windows later that month, as well as in March and April.，详情可参考WPS官方版本下载
▲ 三星传统艺能：6 种机身颜色，只有 2 种颜色的笔