Elon Musk 's most ambitious launch? Perhaps it's fatherhood.

After all, the SpaceX CEO has fathered so many children at this point that even his daughter Vivian Jenna Wilson (one of his six kids with first wife Justine Wilson ) has stopped keeping count .

"I will say I do not actually know how many siblings I have, if you include half-siblings," Vivian told Teen Vogue of her estranged father in a March interview. "That's just a fun fact. It's really good for two truths and a lie."

For the record, the tally is 14, though the Tesla CEO has driven home the fact that he's not 100 percent confident that conservative influencer Ashley St. Clair 's son Romulus , born in 2024, is his.

"Despite not knowing for sure," the South Africa native, 53, wrote in a post on X

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