Can Nasa build the most complex flying machine in space history? The plan is to create a permanent human presence in space.

It’s Spring 1969 - two months before the launch of Apollo 11 – the first US mission to land humans on the moon. But meanwhile, hidden away from public view, Nasa is thinking the unthinkable.

Maverick engineer Dr Max Faget is already a legend within Nasa. He’s fascinated by what could be next for human spaceflight. In a backroom, of Building 36 at Johnson Space Center, he invites a handful of engineers to a meeting. One of them is Ivy Hooks, a mathematician and engineer. And one of the first female engineers at Nasa.

https://www.bbc.co.uk/programmes/w3ct80bj