Bezos’ space company Blue Origin started at about the same time as Musk’s SpaceX but since then Musk’s firm has launched more than 400 of its Falcon 9 rockets into orbit and is testing out its giant Starship rocket which it hopes will send astronauts to the Moon and one day possibly on to Mars.

Elon Musk's SpaceX on Wednesday pushed back its latest orbital flight test of Starship, the colossal prototype rocket the company hopes will help humans colonize Mars.- Betting on Starship - SpaceX already dominates the orbital launch market with its Falcon 9 and Falcon Heavy rockets, which serve commercial clients, NASA and the Pentagon.

Blue Origin's New Glenn rocket blasts off and reaches orbit on its initial flight. More Videos. How to make new friends using Reddit, Instagram, more