Hundreds of people are lined up to ride a short high-speed trip aboard a Virgin Galactic space plane and have agreed to pay $ 200,000 to $ 250,000 per seat.
Branson plans to be the first non-crew member to board the plane.
" Hopefully, in not many months' time, I'll be dreaming of going to space and others will soon follow, "Branson said in May.
Also has spent years working on its space tourism plans, and Blue Origin is expected to compete directly with Virgin Galactic in that business.
Blue Origin expects to launch its first person into space by the end of the year.
SpaceX, which has built a business around building rockets to launch satellites and resupply missions to the International Space Station, also plans to send tourists into space.