Nasa astronauts stranded in space until next year admit to ‘tough times’

The astronauts stranded in space have said they do not feel let down by Boeing (Nasa/PA)

Nasa astronauts stranded in space until next year said they did not feel let down by Boeing, but admitted to “tough times”.

Boeing’s first astronaut mission ended earlier this month with its Starliner capsule returning to Earth with test pilots Barry “Butch” Wilmore and Sunita Williams still in space.