Last year, when Google and Fidelity invested $1 billion into Elon Musk’s SpaceX, one of the company’s earliest backers also wanted to get in on the latest round of funding. But SpaceX ever-so politely asked Steve Jurvetson’s Silicon Valley venture capital firm to kindly hold off. SpaceX, one of the hottest enterprises in the rising commercial space industry, suddenly could afford to turn money away.