资讯
A private Chinese space firm has successfully sent its liquid-propellant rocket into orbit, becoming one step closer to developing reusable rockets. On Sunday, Beijing Tianbing Technology Co launched ...
KENNEDY SPACE CENTER, Fla.—America's space agency on Saturday sought to launch a rocket largely cobbled together from the space shuttle, which itself was designed and built more than four decades ago.
一些您可能无法访问的结果已被隐去。
显示无法访问的结果