SpaceX CEO Elon Musk jokingly mentions his promise to get a volcano lair after successful IPO, as company's valuation surpasses $2 trillion.

SpaceX launches historic Wall Street debut as Elon Musk revives bold plans for Moon and Mars missions, eyeing a $75 billion IPO and trillion-dollar valuation.

Elon Musk revealed that when he founded SpaceX he gave it less than a 10% chance of success. However, the aerospace giant on Friday, debuted on Nasdaq in the largest IPO ever,…