Rocket Lab USA is still one of the market's most promising space stocks. Many space-oriented companies went public by merging with special purpose acquisition companies (SPACs) in 2021. That process was simpler and faster than filing a traditional IPO, but it also allowed companies to set ambitious long-term projections, which attracted a lot of speculative investors. Unfortunately, most space-oriented SPACs went bankrupt, attracted regulatory crackdowns, pivoted toward other industries, or went private aga ...