SpaceX launched its huge Super Heavy-Starship on Tuesday, chalking up what appeared to be a remarkably successful test flight in the wake of three back-to-back failures​ earlier this year.

Two test flights of its Starship mega-rocket, in January and March, ended in fireworks as their upper stages broke apart over the Caribbean. A third test, in May, lasted a little longer, until a fuel leak doomed the rocket to an uncontrolled re-entry.