Elon Musk's SpaceX is getting ready to break new records on Wall Street — and make one of the world's wealthiest men even wealthier. The space-launch company filed financial information with regulators to pull off what could be the biggest initial public offering ever in mid-June.

SpaceX plans to launch its 12th test flight for the Starship rocket on Thursday, but some things will be different this time around. The latest version of SpaceX’s giant rocket is dubbed V3, short for version three.