This launch will debut the next-generation Version 3 of Starship, which is bigger and more powerful than previous models.

SpaceX is targeting as early as 6:30 p.m. ET for the 12th test flight of its Starship megarocket — the first of a new generation of scaled-up prototypes called Starship V3.

The debut flight of Starship V3 - designed to enable more frequent Starlink satellite launches and to send future NASA missions to the moon - represents a key milestone for the vehicle following month...