British author Samantha Harvey has won the Booker Prize for her novel "Orbital," which focuses on six astronauts aboard the International Space Station.

Samantha Harvey has revealed how she questioned writing her Booker Prize-winning novel Orbital (Jonathan Cape), set in space, in "this age of authenticity".

Before Tuesday night, the author Samantha Harvey had got used to thinking of herself as a bit of an underdog. “It’s not out of self-pity, but I definitely saw myself as being on the periphery,” she says.