Elon Musk just became the first person ever worth $800 billion or more after his rocket maker SpaceX acquired his artificial ...

Musk is combining rocket maker SpaceX with his AI startup, the largest tie-up in his expansive business portfolio.

Elon Musk is joining his space exploration and artificial intelligence ventures into a single company before a massive planned initial public offering for the business later this year.

SpaceX, a leader in rocket launches and satellite internet, will now also house Musk’s ventures in artificial intelligence and social media.