In a news briefing following the landing, Nasa spokesperson Steve Stich said: "From a human perspective, all of us feel happy about the successful landing, but then there's a piece of us - all of us - that wish it would have been the way we had planned it.

NASA astronauts Sunita "Suni" Williams and Barry "Butch" Wilmore have been on the International Space Station since June, even though they initially expected to stay for just eight days. But Williams told PBS NewsHour recently that they don't feel abandoned by NASA.

Stranded astronauts Barry 'Butch' Wilmore and Sunita 'Suni' Williams are nearing their return date, and have now revealed the hardest factor of their nine-month stay aboard the International Space Station (ISS).