Perhaps look into the DC-X program, fully 20 years before SpaceX Falcon: en.wikipedia.org/wiki/McDonnell_Douglas_DC-X
The Milky Way isn't stationary ๐
The Sun isn't stationary ๐
Perhaps look into the DC-X program, fully 20 years before SpaceX Falcon: en.wikipedia.org/wiki/McDonnell_Douglas_DC-X