Even with astronauts stuck in space until next year, NASA's pushing human flights harder than ever

NASA astronauts Butch Wilmore and Suni Williams were meant to go to the International Space Station (ISS) on a roughly ten-day mission. Instead, they have been "stuck" there since June, as the reliability of their spacecraft - Boeing Starliner - has not met NASA's strict standards for crewed flight.

After two months of testing, NASA has now made the call that Starliner will return to Earth in September