SpaceX is superb at reusing boosters, but how about building upper stages?
With the launch Friday and another Falcon 9 flight Monday (this one with a booster on its 15th mission), SpaceX has launched ...
来自MSN5 个月
5 Of The Most Powerful Engines Propelling Space Exploration
Its Falcon rockets have launched a multitude of Starlink satellites, with the Merlin 1D engine powering the payload into space. On the Falcon Heavy, 27 Merlin 1D engines each produce 63.5 tonnes ...