The last, best hope for space tourism just rolled onto a runway in Arizona

The private space tourism era looked so very promising five years ago. Blue Origin and Virgin Galactic had begun flying customers—real people with zero space experience—on suborbital missions. And at about the same time, private citizens were going to orbit for days at a time aboard SpaceX's Crew Dragon. But that was then. Consider the state of play today: It has been 10 months since Blue…