Battle of the billionaires | Bezos and Musk’s rivalry to be richest man

The competition to be the richest person on the planet doesn’t stop on Earth: Jeff Bezos and Elon Musk are also in a race to colonize space.

But is it just billionaire boys playing with their multimillion dollar toys? Or could we actually see Amazon delivery drones and Teslas scooting around the moon and Mars someday?