Elon Musk founded SpaceX in 2002 with a grand goal of sending humans to Mars and colonizing Earth's neighboring planet. Today, the company is...

SpaceX has filed for its initial public offering. The company aims for a trillion-dollar market debut. This listing could set a precedent for future IPOs from major tech firms.…

The long-awaited S-1 finally landed—and it shows Elon Musk's empire is far bigger, and more complex, than almost anyone knew.