Jeff Bezos

The Duke of Cambridge said the "world's greatest brains" should be focused on "trying to repair this planet" rather than blasting off into space.

The 90-year-old was supposed to depart Earth on Tuesday as part of a crew aboard Jeff Bezos' Blue Origin but weather conditions put pay to that for 24 hours.

The actor, who played Captain Kirk in the sci-fi programme, will be part of the second group to travel on the spacecraft built by the Amazon owner's company.