The most powerful rocket ever built is now even bigger and more powerful. But will it work?

By Jackie Wattles, CNN (CNN) — After a seven-month hiatus, SpaceX is set to launch a new, more powerful version its Starship megarocket — reigniting a make-or-break testing campaign aimed at hashing out unprecedented rocketry challenges and getting the vehicle ready to carry NASA astronauts to the moon. But experts question whether this vehicle —