Why Jeff Bezos and Elon Musk are battling it out among the stars. Ed Butler speaks to Brad Stone, author of the book Amazon Unbound, about Amazon founder Jeff Bezos's lifelong obsession with space, and to Christian Davenport, space reporter for the Washington Post, about the growing rivalry between the worlds two richest men over government space contracts and the future of the space economy. Former astronaut Janet Kavandi tells us why, like Elon Musk, NASA has Mars colonisation in its sights.

(Photo: Jeff Bezos among Blue Origin’s New Shepard crew after flying into space on July 20, 2021. Credit: Getty Images)