Britain is putting its first official first person into space with details of his mission to be released later today.
Major Tim Peake, who is 41, has been training for the mission to the International Space Station since 2009.
The date of his blast-off has not yet been made public but it will not be before 2015.
Watch Tim in basic training:
Previous Britons in space have paid to go as space tourists or became American citizens and were launched by NASA.
Major Tim Peake will be the first British astronaut in space for 20 years - but has no plans to sing any Bowie songs from outer space.
As Tim Peake prepares to become the first official Brit in space, here are other British-born astronauts who have experienced the thrill.