Jeff Bezos appeared in several interviews on Monday with his brother Mark and two other Blue Origin teammates Wally Funk and teenager Oliver Daemen from the base at Van Horn, Texas

They will blast off from 'Launch Site One' aboard the New Shepard rocket on Tuesday July 20 at 9am EST - 2pm GMT  

They insist they are 'ready' for the mission and that it will set a precedent for 'commercial space travel' 

The passengers will spend four minutes floating in zero gravity in space before a return back to Earth

Wally Funk, 82, will become the oldest person to go to space. She was one of the 13 women who passed NASA's astronaut training program in the 1960s 

Oliver Daemen is an 18-year-old physics student from the Netherlands whose father paid for his flight

He only got the coveted seat because another man - who paid $28million for it - dropped out  

Virgin Galactic founder Sir Richard Branson became the first billionaire founder astronaut of the space-set