Amazon.com Chief Executive Jeff Bezos says he is selling about $US1 billion ($A1.3 billion) worth of Amazon stock per year to fund his Blue Origin rocket company, and expects to spend about $US2.5 billion developing a rocket capable of lifting satellites and eventually people into orbit.
Blue Origin is aiming to launch paying passengers on 11-minute suborbital space rides next year, Bezos told reporters at the US Space Symposium in Colorado Spriongs on Wednesday.
