SpaceX is preparing the first flight of its upgraded Starship V3 vehicle as the 12th test in the program, with a 90-minute launch window opening at 6:30 p.m. ET from a new pad in Starbase, Texas. The company has also filed paperwork for a public stock offering targeting a $1.7 trillion valuation. Multiple sources confirm prior investment exceeding $15 billion and specific ownership stakes held by Elon Musk.