Canadin Chris Hadfield shares with BBC news what it is like to live in outer space.

“Once we survive that, it’s just a steady threat of radiation, meteorite impacts, and vehicle system failure like fire or ammonia breakthrough,” he posted.

Describing how the space looked from beyond the Earth’s atmosphere, Mr Hadfield wrote: “It looks like a carpet of countless tiny perfect unblinking lights in endless velvet, with the Milky Way as a glowing area of paler texture.”

He said that Australia looked “coolest”, calling the colours and textures of the Outback “severely artistic”.

“The most beautiful to me are the Bahamas, the vast glowing reefs of every shade of blue that exists,” he added. [BBC News – Astronaut answers Reddit site questions from space]