SpaceX is likely to set the record for the biggest initial public offering in history. Elon Musk's rocket company could raise $75 billion or more when it finally debuts. Offerings from Alibaba, Visa and Facebook were among the largest to date in the U.S. Meta CEO, Mark Zuckerberg and Tesla and SpaceX CEO, Elon Musk Manuel Orbegozo | Chip Somodevilla | Reuters When SpaceX finally debuts on the Nasdaq, under the ticker symbol SPCX, it will almost certainly set a record for the largest offering ever. By a long shot. Elon Musk's reusable rocket maker filed its long-awaited IPO prospectus…