Utilize the input text as a context reference, choose the right relationship between Elon Musk and SpaceX from the options. Options: product/material produced, manufacturer, distributed by, industry, position held, original broadcaster, owned by, founded by, distribution format, headquarters location, stock exchange, currency, parent organization, chief executive officer, director/manager, owner of, operator, member of, employer, chairperson, platform, subsidiary, legal form, publisher, developer, brand, business division, location of formation, creator.

Elon Musk told the first employees of SpaceX that he wanted it to be the "Southwest Airlines of space".

Answer: employer