Four “amateur astronauts” are about to launch into orbit in another landmark mission for space tourism.
It’s the latest flight to help open up access to space for paying customers, following on from launches by Richard Branson and Jeff Bezos.
The trip has been paid for by US billionaire businessman Jared Isaacman, who will travel with three crewmates.
A healthcare worker, a science educator and a data analyst will circle the Earth with Mr Isaacman for three days.
They hope to inspire others with their adventure and to raise money for children’s cancer medicine. Accordingly, the mission has been named Inspiration4.
The crew’s Dragon vehicle, manufactured by Elon Musk’s company SpaceX, will ride atop a Falcon-9 rocket. It is due to launch from Florida’s Kennedy Space Center at 20:02 EDT on Wednesday (01:02 BST, Thursday), or very shortly after.