The space flight upstart has bold ambitions for its next-generation rocket. Growth investors would love to get their hands on SpaceX stock. The space economy is booming, and it's estimated to hit $1 trillion in spending by 2030, and SpaceX is the clear leader in the industry. The problem is, the rocket launch company is privately owned and already worth an estimated $200 billion. So, how does an investor gain exposure to the space economy? Enter Rocket Lab USA (RKLB 3.67%). The upstart rocket company is the ...