As of 2021, Jeff Bezos has invested over $7.5 billion of his personal wealth into Blue Origin, his space exploration company. This investment has been made over the course of two decades, with Bezos committing to funding the company's ambitious goals of developing reusable rockets and spacecraft for space tourism and space exploration.

In addition to his personal investment, Blue Origin has also received funding from NASA and other government agencies for various projects. The company has also secured contracts with private clients, such as satellite companies and research organizations, to launch payloads into space.

Bezos has made it clear that he sees Blue Origin as a long-term investment, with the ultimate goal of enabling humanity to live and work in space. He has stated that he is willing to invest even more of his personal wealth into the company in order to achieve this vision.

References:

• "Jeff Bezos has invested $7.5 billion in Blue Origin. Here's how the Amazon founder's passion for space is rooted in childhood." Business Insider, July 2021.
• "Blue Origin and Jeff Bezos: The billionaire space race." BBC News, July 2021.
• "Blue Origin: Jeff Bezos's space company." Space.com, accessed September 2021.