SpaceX stock is about to join this growing constellation of public space companies

The space sector has come into renewed focus as the U.S. and China race to the moon. Meanwhile, SpaceX also seeks to build a colony on Mars, and the Trump administration plans to create the “Golden Dome” space-based missile shield. In addition to rocket companies that launch payloads into orbit, others in the sector develop satellites and vehicles or provide space-based services like communications and imagery. Some are recent upstarts, while others have been mainstays for decades. For its part, Elon Musk started SpaceX in 2002 to challenge the dominance of Boeing and Lockheed Martin. By pioneering the development of…