Elon Musk's other company reports earnings today. That's a funny way to describe a $1.2 trillion company, but Tesla's increasingly feeling like it's playing second fiddle to SpaceX. Musk's space company, which houses his AI startup, xAI, is eyeing a historic IPO that could value it at up to $2 trillion. (He's also got a court case against Sam Altman to worry about, but that's another story entirely .) Meanwhile, the excitement around Tesla, which reports earnings this afternoon , is