Jeff Bezos says his dream of travelling into space was born when, as a five year old, he watched Neil Armstrong and Buzz Aldrin walk on the moon in 1969.
Fifty-two years to the day, the Amazon founder and richest man on the planet will blast off in his own rocket to make that dream come true.
Mr Bezos will be joined by his brother Mark and the two people who will become the youngest and oldest to travel to space.
They will also be the first humans to lift off aboard the New Shepard rocket built by Mr Bezos's Blue Origin. There will be no crew on board as the launch is completely automated.
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