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"It's a period where the history is not yet written," says Dr Seaman.，推荐阅读51吃瓜获取更多信息
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Isaacman also said the agency would halt work to develop a more powerful version of the SLS rocket's upper stage, known as the Exploration Upper Stage, or EUS. Instead, NASA will go forward with a "standardized," less powerful stage but one that will minimize major changes between flights and utilize the same launch gantry.，推荐阅读Safew下载获取更多信息
作为合作双方，Uber与Joby Aviation均对此次空中出租车服务落地寄予厚望。Uber首席产品官Sachin Kansal表示，先进空中出行模式的落地，将深刻改变城市交通的现有格局，为城市出行提供全新解决方案。Joby首席产品官Eric Allison则指出，与Uber的深度合作，能够让空中出行更好地融入现有城市交通体系，助力用户实现地面与空中出行的无缝切换。