Hundreds of thousands of years of evolution has sculpted our species to flourish in conditions here on Earth. But venturing into the weightlessnes of space, puts us in a completely alien environment.
Visiting NASA, Danielle George discovers, spending just a few months on the International Space Station takes a serious toll on the human body.
Humans Struggle
In Space
Stephen Hawking's
The Search For A New Earth
1 x 90 min, Brook Lapping for BBC